Interesting Connecticut Weather Facts

Average winter snowfall in the Northwest Hills is 50 inches
Average winter snowfall along the coast is 30-35 inches
The odds of a damaging earthquake in Connecticut are 1 in 20 each year
Connecticut averages 1-2 earthquakes a year

January averages 3.5 inches of liquid precipitation; 12.3 inches of snowfall
-14th-Daylight increasing by 1.5 minutes each day
-16th-Record high this date 62o F in 1995; record low -8oF in 1994
-24th-Daylight increasing by 2 minutes each day
January 20-25 is the traditional January thaw

February averages 3.2 inches of liquid precipitation; 11.3 inches of snowfall
Blizzard of 1978 brought 2 feet of snow
-10th-gaining about 2.5 minutes of sunlight per day
-16th lowest temperature ever recorded in Connecticut (-37oF) in Norfolk, 1943

March averages 4.2 inches of liquid precipitation; 9.3 inches of snowfall
-11th-Blizzard of 1888 yields 40+ inches of snow
83.1 inches in 1994, is the most snowfall since record keeping began in 1905
-19th-Blizzard leaves 9-22 inches of snow, making March 1956 the snowiest March on record

April averages 4 inches of precipitation
-10th-Last snowfall of the 1996 season establishes new snowfall record of 115.2 inches surpassing old record set in 1993-1994, by more than 20 inches.
-18th-Average last frost along coast and in Central Valley

May averages 3.4 inches of precipitation
-9th-Average last frost in Northwest Hills

June averages 3.4 inches of precipitation
-19th-Record high temperature was 95°
-28th-Record low temperature for day, 40oF, set 1995
3 tornadoes touch down: Chester, Hadlyme, and Killingworth, 1998
Hurricane season begins and runs through November 30th
8 inches of hail covered the ground in East Canaan, 1954
July Beach Scene

July averages 3.1 inches of precipitation
-3rd-Tornado hits the Waterbury/Wolcott line, 1996
-9th-Tornado hits Monroe, 1996
-10th-Tornado outbreak in Litchfield and New Haven Counties; Town of Hamden hit the hardest, 1989
-15th-2-3 inch hailstones fall on Bozrah, Franklin, and Lebanon, 1799
-15th-Highest temperature ever recorded in Connecticut 106oF in Danbury, 1995
-22nd-Second highest temperature ever recorded in Connecticut 105F in Waterbury, 1926
July’s consistent heat makes it the most thunderstorm prone month
July 1994 was hottest on record; average temperature of 77.1oF was 3.4oF above normal

August averages 4 inches of precipitation
-18th-Hurricane Diane 1955
-31st-Hurricane Carol 1954
Connecticut’s “Tornado Alley” is through Litchfield and Hartford counties, with 21 twisters passing through since 1960
September Leaf

September averages 4 inches of precipitation
-10th-Peak of the hurricane season
-11th-Hurricane Edna, 1954, causes widespread damage
-14th-Hurricane Donna, 1960 kills three, causes large crop losses
-14th-Great Atlantic Hurricane, 1944, causes $100 million in damages
-21st- Great New England Hurricane, 1938
September ranks second, to October, in clear days, averaging 8.6

October averages 3.5 inches of precipitation
-3rd-Windsor Locks hit by tornado 1979
-6th-Average first frost in Northwest Hills
-10th-Average first frost in Central Valley
-19th-Average first frost along the coast
October ranks first in clear days, averaging 9.1

November averages 4 inches of liquid precipitation; 2 inches of snowfall
-12th-first snowfalls often around this time
-26th- 1898,heaviest 2-day snowstorm on record in New Haven and New London
-30th-Hurricane season ends
December Snow Flake

December averages 4.2 inches of liquid precipitation; 10.4 inches of snowfall
45.3 inches of snow in December 1945, make it the snowiest month ever in Connecticut

(Information provided by the CT DEP)

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