March 2013 Weather SummaryApril 1st, 2013 at 1:03 pm by Bill Steffen under Bill's Blog, Weather
Snow falling in Caledonia on 3/26/13 from “yvansled” at ReportIt. Click on the picture on here to see full screen. March was cooler, drier and cloudier than average. The average high temperature was 38.8°. That was 5.6° cooler than average and a whopping 21.8° cooler than the 60.6 average high of March 2012 (remember, March last year was warmer than April!). That was the biggest year-to-year change in high temperature for any month ever in G.R. The average low temperature was 24.3° which was 2.6° cooler than average (40.8° last March). So, the average temperature for the month (high and low together) was 35.6° (rounded up to the next tenth) and that was 4.1° cooler than average. The highest temperature was 56°, which means we had two days in January that were warmer than any day in February or March) and the lowest was 11. We had 0.94″ of precipitation and that was well below the average of 2.37″ and the 3.11″ that we had in March 2012. We had no thunder (unusual) and no real big snow events, though we did see at least a trace of snow on 17 out of 31 days of the month. Snowfall totaled 7.7″, slightly below the average 8.3″. The average wind speed was 9.7 mph and the percent of possible sunshine was 37%. The clouds held temperatures down a little in the day and up a little at night. This was a cloudy winter. The percent of possible sunshine was below average in December (18%), January (25%), February (18%) and March (37%). Precipitation was above average in December (2.85″), January (4.01″) and February (3.05″). For the period Dec. 1 – March 31, precipitation for G.R. was 10.85″ and that was 2.1″ above average. We added 0.1″ of snow last night at the Ford Airport, brining our season total to 65.3″. Muskegon stands at 98.6″. Snowfall last night at Alba totaled 5.0″ bringing their snow cover up to 26″ (the most in Lower Michigan). Frederic reported 7″ of new snow. Other snow cover reports on this April 1: 42″ S. of Grand Marais, 36″ at the Marquette Airport and at Atlantic Mine, 34″ at Herman, 29″ at Munising, 26″ at Newberry (5.2″ snow last night), 19″ S. Ste. Marie, 16″ Ironwood, 14″ E. Jordan, 13″ Iron Mt., 8″ Gaylord, 3″ Cadillac and Houghton Lake and 2″ Traverse City (Munson Arpt.). 16.6% of the Lower 48 states has a snow cover this morning and that compares to 8.2% last year on 4/1.
The highest temperature in Washington, D.C. in March was 63°. This is the coldest high for March since the 58° in 1958. It’s only the second time Washington has failed to reach 65° in March since the 60° high in 1931. Global satellite IR data shows the globe was very close to average for temperatures in March 2013 (+0.02 degree). With the exception of NE Canada, populated areas from 40 to 65 N. Latitude in the Northern Hemisphere were quite cold (blocking – negative Arctic Oscillation pushed the cold south into the U.S., Europe and Russia). “Coldest Easter ever in the U.K.” and coldest March in 50 years.