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March 2023 Observations and Discussion


Tom

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Normal highs for today are in the mid-50's we will not see temps that warm until Friday. The chilliest day of the week will be Thursday with highs running nearly 10 degrees below normal. We also have the chance of some below freezing mornings over the next 3 days. Keep an eye on any plants you may already have outside. Our next rain chances arrive on Friday afternoon.
Records: High 84 (1945) / Low 16 (1928) / Rain 2.26" (1932) / Snow 1.0" (1956)
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DISCLAMER: All historical weather data analytics posted by me is specifically for the climate of Chester County PA. The data has been statistically validated (p <0.05) for this county as accurate for the period 1894 to Present. This statistical significance has been proven across multiple NWS observers and site changes across a <9 nautical mile area of Western Chester County. We continually analyze the actual raw non-adjusted NWS certified Coop observed climate data for Chester County.  We ensure there is no post observation adjustments to any of the detailed analytics.  Unlike NOAA, we do not apply post observation adjustments to the historical raw data from the trained NWS observers and spotters.  

Average Chester County PA Snow at elevations over 660 FT ASL (1983-Present) = 35.9" Snow totals by season: 2022/23 (2.7") /2021/22 (20.5")  2020/21 snow  (52.2") /  2019/20 snow (5.8" )/ 2018/19 snow (35.1" )/ 2017/18 snow (58.5") / 2016/17 snow (24.0")/ 2015/16 snow (40.8")/ 2014/15 snow = (55.3") /2013/14 snow (80.0").

Check out the historical Western Chester County PA website at https://www.chescowx.com.  Follow me on twitter at https://twitter.com/ChescoWx and join us on the #1 social media source for all things Chester County weather on the Chester County Weather Page at https://www.facebook.com/groups/chescowx

National Weather Service  SKYWARN® Trained Spotter CHPA-174

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With clear skies last night I went out and could see of course Venus, Mars and Jupiter but could not see Mercury nor Uranus.

With a good amount of sun (86% of possible sunshine) yesterday was a somewhat pleasant late March day. The official H/L was 48/28 and there was no rain or snow fall. With clear skies the overnight low here in MBY fell to 28 before the clouds moved in at the current time it is 36. For today the average H/L is 50/31 the record high of 82 was set in 1910 and the record low of 6 was is 1970 the most snow fall of 7.5” fell in 1954. Today the sun angle is the same as on September 14th

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Plenty of valley locations across Chester County saw sub freezing temps this morning with some upper 20's in spots. Along the higher ridge locations we temps remained in the mid-30's. Today will be just about normal regarding high temps with readings in the mid-50's. Tomorrow we slip to well below normal with highs in the mid-40's. We warm up to start the weekend but with showers likely on Friday night into Saturday.
Records for today: High 87 (1945) / Low 9 (1923) / Rain 1.23" (1984) / Snow 3.0" (1942)
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DISCLAMER: All historical weather data analytics posted by me is specifically for the climate of Chester County PA. The data has been statistically validated (p <0.05) for this county as accurate for the period 1894 to Present. This statistical significance has been proven across multiple NWS observers and site changes across a <9 nautical mile area of Western Chester County. We continually analyze the actual raw non-adjusted NWS certified Coop observed climate data for Chester County.  We ensure there is no post observation adjustments to any of the detailed analytics.  Unlike NOAA, we do not apply post observation adjustments to the historical raw data from the trained NWS observers and spotters.  

Average Chester County PA Snow at elevations over 660 FT ASL (1983-Present) = 35.9" Snow totals by season: 2022/23 (2.7") /2021/22 (20.5")  2020/21 snow  (52.2") /  2019/20 snow (5.8" )/ 2018/19 snow (35.1" )/ 2017/18 snow (58.5") / 2016/17 snow (24.0")/ 2015/16 snow (40.8")/ 2014/15 snow = (55.3") /2013/14 snow (80.0").

Check out the historical Western Chester County PA website at https://www.chescowx.com.  Follow me on twitter at https://twitter.com/ChescoWx and join us on the #1 social media source for all things Chester County weather on the Chester County Weather Page at https://www.facebook.com/groups/chescowx

National Weather Service  SKYWARN® Trained Spotter CHPA-174

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As of yesterday the AWSSI point value for Grand Rapids was 586 GR is on the border of mild/moderate winter for this season. So far this winter season has been 135 days long.  Lansing is at 433 points and is will within the mild winter range. The winter there is 124 days long so far. At Muskegon the point value is 443 and so far winter is 127 days long. To the east where all the locations also have a mild winter Flint has 456 points, Saginaw 490 and  Detroit is at just 390 points. This has been a rather long but very mild winter.

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14 minutes ago, sumweatherdude said:

For KC peeps, I'm attaching a spreadsheet with KC's snow history by month from 1888 to the present. Makes it easier to rank the years

In using the AWSSI index the current winter season is at 240 points good for a mild winter season.

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With a clear sky and calm winds it sure did get cold here overnight. The low here in MBY fell to 16 and that is the current temperature. It looks like the official low for Grand Rapids will be 18. Lets hope that this is the last night that drops down into the teens until late fall.

The official H/L yesterday was 39/23 That high was reached at 8:30 AM before the snow moved in. There was 0.08” of precipitation and 0.06” of snow fall.  There was 55% of sunshine but that did not help with a cold wind during the day. For today the average H/L is 51/31 the record high of 76 was set in 1910 and the record low of 1 was in 1954 the record snow fall of 3” was in 1928. Last year the H/L was 58/33.

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Happy Opening Day to those that celebrate - it should be a national holiday!! Go Phillies!!
This morning was our 1st sub-freezing reading since the 21st with a low of 28.5. Today will be our 3rd straight below normal day with temps running about 10 degrees below normal with highs in the mid-40's. Warmer tomorrow and Saturday with rain arriving later tomorrow into Saturday. Cooler Sunday before a big warmup into the 70's by Tuesday and Wednesday next week.
Records for today: High 88 (1990) / Low 16 (1915) / Rain 0.81"(1980) / Snow 1.8" (1991)
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DISCLAMER: All historical weather data analytics posted by me is specifically for the climate of Chester County PA. The data has been statistically validated (p <0.05) for this county as accurate for the period 1894 to Present. This statistical significance has been proven across multiple NWS observers and site changes across a <9 nautical mile area of Western Chester County. We continually analyze the actual raw non-adjusted NWS certified Coop observed climate data for Chester County.  We ensure there is no post observation adjustments to any of the detailed analytics.  Unlike NOAA, we do not apply post observation adjustments to the historical raw data from the trained NWS observers and spotters.  

Average Chester County PA Snow at elevations over 660 FT ASL (1983-Present) = 35.9" Snow totals by season: 2022/23 (2.7") /2021/22 (20.5")  2020/21 snow  (52.2") /  2019/20 snow (5.8" )/ 2018/19 snow (35.1" )/ 2017/18 snow (58.5") / 2016/17 snow (24.0")/ 2015/16 snow (40.8")/ 2014/15 snow = (55.3") /2013/14 snow (80.0").

Check out the historical Western Chester County PA website at https://www.chescowx.com.  Follow me on twitter at https://twitter.com/ChescoWx and join us on the #1 social media source for all things Chester County weather on the Chester County Weather Page at https://www.facebook.com/groups/chescowx

National Weather Service  SKYWARN® Trained Spotter CHPA-174

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1 hour ago, chescowxman said:
Happy Opening Day to those that celebrate - it should be a national holiday!! Go Phillies!!
This morning was our 1st sub-freezing reading since the 21st with a low of 28.5. Today will be our 3rd straight below normal day with temps running about 10 degrees below normal with highs in the mid-40's. Warmer tomorrow and Saturday with rain arriving later tomorrow into Saturday. Cooler Sunday before a big warmup into the 70's by Tuesday and Wednesday next week.
Records for today: High 88 (1990) / Low 16 (1915) / Rain 0.81"(1980) / Snow 1.8" (1991)
 

I agree 100%! I used to take this day off every year but haven't done so in a while. I only get so many days a year to take off from teaching and I need to save them for other things. GO CUBS! I question the direction the Cubs organization is going right now; the good thing is nobody is eliminated from contention on opening day! 

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7 minutes ago, gabel23 said:

I agree 100%! I used to take this day off every year but haven't done so in a while. I only get so many days a year to take off from teaching and I need to save them for other things. GO CUBS! I question the direction the Cubs organization is going right now; the good thing is nobody is eliminated from contention on opening day! 

I used to take this day off as well,  But not much interest in the awful Detroit Tigers these days.  

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The official H/L yesterday at GR was 46/17 there was 0.06” of rain fall and a reported trace of snow fall. There was 72% of possible sunshine. For today the average H/L is 51/32 the record high of 78 was set in 1986 and 2010 the record low of 6 was set in 1923. The record snow fall of 3.7” fell in 1951..

That official low of 17 (the low was 16 here in MBY) at Grand Rapids yesterday was the 7th coldest at Grand Rapids Yesterday I reported it as being the 9th coldest but there were ties with 2 years at 14 and 2 years at 16. The official low at Lansing of 18 was the 10 coldest once again ties and Lansing records go back to 1964. And at Muskegon the low of 19 was the 5th coldest for any March 30th there.

At the current time there is light rain falling with a temperature of 41.

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It's been a Yo Yo pattern here in the AZ valley as we have been experiencing storms that roll on through in between shorter term warm spells.  Not really the best Spring break year for many that have come out to the valley over the past couple weeks.  It was a cooler and windy day yesterday as the storm passed on through.  Yes, the furnace is still turned on and running this morning.  Pretty crazy and unusual for the last day of March.  Looking forward to the low 80's Sat-Mon.

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No Tx is on its way to 82 today. 
Light wind and a 30% chance of rain.  

Sunday will bring 80-82* and a 50% chance of rain.  Nice Spring so far. 

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Before You Diagnose Yourself With Depression or Low Self-Esteem,...First Make Sure You Are Not In Fact, Just Surrounded By A$$holes.

“If I owned Texas and Hell, I would rent out Texas and live in Hell.”  Gen. Sheridan 1866

2018 Rainfall - 62.65" High Temp. - 110.03* Low Temp. - 8.4*

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I received 0.19" of rain today.

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season snowfall: 5.0"

'22-23: 30.2"      '21-22: 27.1"      '20-21: 52.5"      '19-20: 36.2"      '18-19: 50.2"      '17-18: 39.5"

Average snowfall: ~30"

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We have picked up 0.19" of rain so far this morning. Sun should return for a while this afternoon and temps will soar well into the 60's to near 70 degrees. This has a good chance to be our warmest day so far this year (so far 66.3 on Feb 23rd). A strong cold front crosses the county toward evening with a sharp drop in temps. There cold be a strong thunderstorm and there is a high wind advisory in effect till 2am Sunday. We should see temps fall back into the 40's by late evening. Much colder tomorrow with temps running almost 10 degrees below normal. Highs should be in the mid to upper 40's. Much milder to start the new work week.
Records: High 84 degrees (1917) / Low 7 degrees (1923) / Rain 1.26" (1977) / Snow 15.0" (1924)
image.png.2c3b270fe423c3cbd10e2a226268eff6.png

DISCLAMER: All historical weather data analytics posted by me is specifically for the climate of Chester County PA. The data has been statistically validated (p <0.05) for this county as accurate for the period 1894 to Present. This statistical significance has been proven across multiple NWS observers and site changes across a <9 nautical mile area of Western Chester County. We continually analyze the actual raw non-adjusted NWS certified Coop observed climate data for Chester County.  We ensure there is no post observation adjustments to any of the detailed analytics.  Unlike NOAA, we do not apply post observation adjustments to the historical raw data from the trained NWS observers and spotters.  

Average Chester County PA Snow at elevations over 660 FT ASL (1983-Present) = 35.9" Snow totals by season: 2022/23 (2.7") /2021/22 (20.5")  2020/21 snow  (52.2") /  2019/20 snow (5.8" )/ 2018/19 snow (35.1" )/ 2017/18 snow (58.5") / 2016/17 snow (24.0")/ 2015/16 snow (40.8")/ 2014/15 snow = (55.3") /2013/14 snow (80.0").

Check out the historical Western Chester County PA website at https://www.chescowx.com.  Follow me on twitter at https://twitter.com/ChescoWx and join us on the #1 social media source for all things Chester County weather on the Chester County Weather Page at https://www.facebook.com/groups/chescowx

National Weather Service  SKYWARN® Trained Spotter CHPA-174

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Yesterday was one of those days when the high for the day was just after midnight. And the low was just before noon. So in the record books it will read 57/36 even thought most of the day was in the 30’s.There was 0.02” of rain fall. The overnight low in MBY so far is 22. For today the average H/L is 52/32 the record high of 83 was set in 2010 and the record low of 11 was set in 1965. The record snow all amount of 7.8” fell in 1975. Last year it was a cold 41/23.

 

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