Climatological Report (Seasonal)
Issued by NWS Portland, ME
Issued by NWS Portland, ME
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
000 CXUS51 KGYX 062031 CLSPWM PWMCLMPWM 000 TTAA00 KGYX 011133 CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 331 PM EST FRI MAR 6 2020 ................................... ...THE PORTLAND ME CLIMATE SUMMARY FOR THE WINTER SEASON, FROM 12/1/2019 TO 2/29/2020... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1941 TO 2019 /FOR TEMPERATURES/ CLIMATE RECORD PERIOD 1871 TO 2019 /FOR PRECIPITATION/ CLIMATE RECORD PERIOD 1882 TO 2019 /FOR SNOWFALL/ WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 71 12/06/2001 12/07/1998 LOW -39 02/16/1943 HIGHEST 63 01/11 59 4 62 02/05 LOWEST -4 01/21 -10 6 -2 02/02 AVG. MAXIMUM 38.5 34.3 4.2 35.1 AVG. MINIMUM 21.9 16.8 5.1 17.6 MEAN 30.2 25.6 4.6 26.3 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 21 37.0 -16.0 36 DAYS MIN <= 32 80 82.9 -2.9 86 DAYS MIN <= 0 3 7.6 -4.6 1 PRECIPITATION (INCHES) RECORD MAXIMUM 20.49 1935 MINIMUM 4.12 1872 TOTALS 15.55 10.65 4.90 13.13 DAILY AVG. 0.17 0.12 0.05 0.15 DAYS >= .01 34 32.3 1.7 29 DAYS >= .10 24 19.5 4.5 20 DAYS >= .50 10 7.0 3.0 11 DAYS >= 1.00 4 2.7 1.3 5 GREATEST 24 HR. TOTAL 3.40 12/14 SNOWFALL (INCHES) RECORDS TOTAL 107.6 1971 TOTALS 50.2 44.5 5.7 35.2 SINCE 7/1 50.5 46.4 4.1 51.1 SNOWDEPTH AVG. 4 DAYS >= TRACE 31 20.1 10.9 26 DAYS >= 1.0 13 11.5 1.5 12 GREATEST SNOW DEPTH 11 12/31 24 HR TOTAL 9.8 12/30 DEGREE_DAYS HEATING TOTAL 3145 3550 -405 3457 SINCE 7/1 4580 5078 -498 4990 COOLING TOTAL 0 0 0 0 SINCE 1/1 0 0 0 0 ................................................................. WIND (MPH) AVERAGE WIND SPEED 6.9 HIGHEST WIND SPEED/DIRECTION 38/090 DATE 02/27 HIGHEST GUST SPEED/DIRECTION 47/090 DATE 02/27 SKY COVER AVERAGE SKY COVER 0.60 AVERAGE RH (PERCENT) 63 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && AFTER A VERY COLD NOVEMBER, THE METEOROLOGICAL WINTER BEGAN WITH A LONG DURATION SNOWSTORM. SNOW BEGAN ON THE EVENING OF DECEMBER 1 AND DIDN`T LET UP UNTIL THE 3RD. A TOTAL OF 8.5 INCHES FELL AND THE COLD WEATHER CONTINUED FOR THE FIRST WEEK OF DECEMBER. THEN THE PATTERN CHANGED AND THE TEMPERATURE TOPPED 50 DEGREES ON DECEMBER 8 AND 9 WITH RAIN FALLING. THIS WAS THE START OF A STRETCH OF WARM AND RAINY WEATHER. THE HEAVIEST RAIN FELL ON THE 13TH AND 14TH WHEN 3.78 INCHES FELL, WASHING THE LAST OF THE EARLY SEASON SNOW DEPTH AWAY. SOME LIGHT SNOW FELL ON THE 17TH AND 18TH, BUT WITH MORE WARM WEATHER THERE WAS ONLY A TRACE LEFT ON THE GROUND FOR CHRISTMAS MORNING. ANOTHER LONG DURATION WINTER STORM BROUGHT MORE THAN 12 INCHES OF SNOWFALL JUST BEFORE NEW YEARS. THE WINTER WAS BEGINNING TO SETTLE INTO A PATTERN OF MOSTLY MILD WEATHER WITH BRIEF PERIODS OF ARCTIC COLD. THE NEXT STRETCH OF WARM WEATHER PEAKED AT 63 DEGREES ON JANUARY 11. A FEW SNOWSTORMS AFFECTED THE CITY IN THE MIDDLE OF JANUARY, WITH THE BIGGEST DROPPING 6 INCHES ON THE 16TH. SOME COLDER WEATHER MOVED IN BEHIND THESE STORMS WITH THE TEMPERATURE BOTTOMING OUT AT 4 BELOW ZERO ON THE 21ST. THIS COLD DIDN`T LAST LONG, THOUGH, AS THE TEMPERATURE WARMED BACK INTO THE 40S FOR MUCH OF THE NEXT WEEK. MORE THAN AN INCH OF RAIN FELL ON JANUARY 25TH AND 26TH. ANOTHER WINTER STORM BROUGHT MORE THAN 5 INCHES OF SNOW AND SLEET ALONG WITH SOME FREEZING RAIN ON FEBRUARY 6 AND 7. ARCTIC COLD ARRIVED AGAIN BEHIND THIS STORM WITH THE TEMPERATURE DROPPING TO ZERO ON FEBRUARY 9. AFTER A BIT MORE WARM WEATHER, THE NEXT COLD SNAP ARRIVED FOR VALENTINE`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