December 2014 Observations for the Pacific Northwest
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2024-2025 California and Southwest Weather Thread
Guess what. Marine layer has deepened once again -
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May 2024 Pacific Northwest Weather
Similar to yesterday’s 12z with our friend Rex making an appearance in this solution as well,- 1
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4434
May 2024 Pacific Northwest Weather
I was browsing the F6 data for PDX for this month... could not get any closer to normal there. And what a lovely month overall down there.- 1
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June 2024 Observations and Discussion
We are now about to jump into June and the start of meteorological summer. Before we do just a short note on the anniversary of the 1998 derecho that blew thru here on May 31st Note this is the 24th anniversary not the 23rd https://www.woodtv.com/weather/bills-blog/the-famous-derecho-of-may-31-1998/ Before we look at the averages and records for June and the summer months lets take a look at this past May and the spring season. This past spring had a mean at Grand Rapids of 51.3 the 30 year mean for spring at GR is 47.5 so this spring was +3.8 above average. The past spring had 9.57” of rainfall average at Grand Rapids is 10.38 for a departure of -0.81” there was a total of 7.2” of snowfall average is 9.6” so the departure was -2.4” The highest temperature this spring was 85 and the lowest temperature was 17. The last low of 32 or below was 28 on April 25th June is of course the start of meteorological summer it has the most hours of daylight and the average H/L at Grand Rapids starts out at 75.3/54.1 on the 1st and rises to 82.3/61.5 on the 30th The average 30 year mean is 68.1 and the new 15 year average mean is 69.1. The warmest 5 Junes are 74.2 in 1919. 74.0 in 1933. 73.4 in 1921. 73.2 in 1934 and 72.8 in 2005. The coldest 5 are 61.8 in 1969. 61.9 in 1928. 62.0 in 1958. 62.3 in 1926 and 62.5 in 1945. The record highest day is 102 on June 20th 1953 the all time low is 32 on June 4th 1945. The average number of days with highs of 80 or better is 14. The most days of 80 or better is 25 in 1919 the June with the least was 1916 with just 2 days of 80 or better. The average number of days with highs of 85 or better is 8 the most is 18 and that happened on 4 years. There have been 5 years when there we no days of 85 or better. The average number of days of 90 or better is just 3 the most is 14 in 1894 and there have been a total of 37 years when the high did not reach 90 or better in June. The record low for June is 32 on June 4th 1945 it was just 33 on June 11th 1972. The warmest low (for the whole month) was 52 in 1934 in 1938 it did not get any colder than 51 and in 2008 and 2005 it did not get below 50. The wettest June was in 1892 when a reported 13.22” of rain fell. Last year had the 2nd most with 8.49” The driest June was in 1988 when just 0.25” fell in the whole month. To go along with that 2nd wettest June, last year had a mean of 70.9 that was +2.0. The high for the month was 90 on the 11th and 12th and the low was 41 on the 22nd there were 10 days of 85 or higher. And 4 nights fell into the 40’s. At Grand Rapids the average mean for meteorological summer is 68.9 using the 30 average and 69.1 using the 15-year average. The warmest summer in recorded history at Grand Rapids is 74.7° in 1955. The 2nd warmest is 73.6 in 2012. The coldest is 1992 with a mean of 65.5. Last year the mean was 72.5. The wettest was in 1994 with 22.63” and the driest was way back in 1894 with 3.03” Last year Grand Rapids recorded 15.26” of rain fall. On average Grand Rapids has a little over 60% of possible sunshine. On average the hottest day of the year is 92. There have only been two summers when the temperature did not reach 90 or better. The current 30 year average number of days of 90 or better is just 9 the record number. The most was 36 in 1988 and the least was 0 in 1951 and 2014. Last year there were 14 days of 90 or better. The Summer solstice this year will be on June 20th at 4:50 PM EDT. After that date the number of hours of daylight will start their decline towards fall and then winter.- 1
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