Climate and monthly weather forecastCrystal Lake, CT
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Crystal Lake, Connecticut, with temperature in the range of an average low of 19.8°F (-6.8°C) and an average high of 32.4°F (0.2°C). The coldest month is January, with an average high-temperature of 32.4°F (0.2°C) and an average low-temperature of 19.8°F (-6.8°C). Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Crystal Lake, Connecticut, with an average temperature ranging between max 35.2°F (1.8°C) and min 20.7°F (-6.3°C). As Crystal Lake steps into February, the average high-temperature is measured at a still icy 35.2°F (1.8°C), displaying minor differences from January's 32.4°F (0.2°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Crystal Lake, Connecticut, with an average temperature varying between 43.3°F (6.3°C) and 28.8°F (-1.8°C). Crystal Lake's March weather indicates a minor increase in high-temperatures, edging from February's wintry 35.2°F (1.8°C) to a frosty 43.3°F (6.3°C). Weather in March »Weather in April
April is a mild spring month in Crystal Lake, Connecticut, with temperature in the range of an average high of 56.3°F (13.5°C) and an average low of 38.8°F (3.8°C). April's arrival sees a rise in the average high-temperature, jumping from March's frosty 43.3°F (6.3°C) to a refreshing 56.3°F (13.5°C). Weather in April »Weather in May
May, the last month of the spring in Crystal Lake, is an agreeable month, with an average temperature fluctuating between 48.6°F (9.2°C) and 68.4°F (20.2°C). In May, the average high-temperature increases from a refreshing 56.3°F (13.5°C) in April to a pleasant 68.4°F (20.2°C). Weather in May »Weather in June
June, the first month of the summer in Crystal Lake, is a moderately hot month, with an average temperature varying between 75.7°F (24.3°C) and 55.6°F (13.1°C). A soft shift in the average high-temperature is noticeable in June, transitioning from a pleasant 68.4°F (20.2°C) in May to a moderately hot 75.7°F (24.3°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Crystal Lake, Connecticut, with an average temperature varying between 62.6°F (17°C) and 82.2°F (27.9°C). Crystal Lake's temperature records reveal July as the warmest month, marked by average highs of 82.2°F (27.9°C) and lows of 62.6°F (17°C). July's average heat index is computed to be a tropical 87.8°F (31°C). Weather in July »Weather in August
August, the last month of the summer in Crystal Lake, is also a moderately hot month, with an average temperature fluctuating between 61.3°F (16.3°C) and 80.1°F (26.7°C). As Crystal Lake welcomes August, the average high-temperature is noted at a still warm 80.1°F (26.7°C), closely aligning with the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Crystal Lake, is still a warm month, with an average temperature fluctuating between 73.4°F (23°C) and 54.5°F (12.5°C). With the commencement of September, Crystal Lake records a moderate temperature decline, with the average high easing from August's 80.1°F (26.7°C) to a still warm 73.4°F (23°C). Weather in September »Weather in October
October, the same as September, in Crystal Lake, Connecticut, is another refreshing autumn month, with an average temperature ranging between min 45.5°F (7.5°C) and max 60.4°F (15.8°C). October comes with a decrease in the average high-temperature, falling from a warm 73.4°F (23°C) in September to a refreshing 60.4°F (15.8°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Crystal Lake, Connecticut, with an average temperature fluctuating between 48.4°F (9.1°C) and 34.7°F (1.5°C). As October transitions into November, Crystal Lake sees a drop in the average high-temperature, transitioning from a refreshing 60.4°F (15.8°C) to a frosty 48.4°F (9.1°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Crystal Lake, Connecticut, with temperature in the range of an average high of 38.1°F (3.4°C) and an average low of 27.1°F (-2.7°C). The beginning of December marks a decrease in the average high-temperature, transitioning from a frosty 48.4°F (9.1°C) in November to a cold 38.1°F (3.4°C). Weather in December »Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January brings the lowest temperatures, with an average high of 32.4°F (0.2°C) and an average low of 19.8°F (-6.8°C).
Throughout the year, there are 105.6 rainfall days, and 9.84" (250mm) of precipitation is accumulated.
January through May, November and December are months with snowfall in Crystal Lake.
In Crystal Lake, during the entire year, snow falls for 23.1 days and aggregates up to 4.69" (119mm) of snow.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
The most humid month is February, with an average relative humidity of 80%.
The month with the most snowfall is February, when snow falls for 6.4 days and typically aggregates up to 1.5" (38mm) of snow.
February has the least sunshine of the year, with an average of 4.6h of sunshine.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Crystal Lake, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
April is the least humid month, with an average relative humidity of 71%.
The months with the most rainfall are May through July, with an average 1.1" (28mm) of precipitation.
In Crystal Lake, snow does not fall in June through October.
With an average of 15h and 12min of daylight, June has the longest days of the year.
June through August, with an average maximum UV index of 6, are months with the highest UV index in Crystal Lake.
With average high temperatures of 82.2°F (27.9°C) and lows of 62.6°F (17°C), July is the warmest month.
July and August, with an average of 10.3h of sunshine, are months with the most sunshine.
The month with the least rainfall is September, when the rain falls for 7.9 days and typically collects 0.39" (10mm) of precipitation.
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Crystal Lake, CT
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.4°F).
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure
Crystal Lake, CT
- Average pressure in January:
30.03"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Crystal Lake, CT
- Average wind speed in January:
8.2mph - Average wind speed in February:
8.1mph - Average wind speed in March:
8.2mph - Average wind speed in April:
7.8mph - Average wind speed in May:
6.6mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5.8mph - Average wind speed in October:
6.9mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.8mph
The windiest months (with the highest average wind speed) are January and March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
Crystal Lake, CT
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).
Average rainfall
Crystal Lake, CT
- Average rainfall in January:
0.51" - Average rainfall in February:
0.59" - Average rainfall in March:
0.67" - Average rainfall in April:
0.87" - Average rainfall in May:
1.1" - Average rainfall in June:
1.1"
- Average rainfall in July:
1.1" - Average rainfall in August:
0.91" - Average rainfall in September:
0.39" - Average rainfall in October:
0.91" - Average rainfall in November:
0.91" - Average rainfall in December:
0.79"
The wettest months (with the highest rainfall) are May, June and July (1.1").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days
Crystal Lake, CT
- Average rainfall days in January:
5.5 days - Average rainfall days in February:
5.5 days - Average rainfall days in March:
8.2 days - Average rainfall days in April:
10.8 days - Average rainfall days in May:
11.5 days - Average rainfall days in June:
12.1 days
- Average rainfall days in July:
11.3 days - Average rainfall days in August:
9.8 days - Average rainfall days in September:
7.9 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
6.5 days - Average rainfall days in December:
7 days
The month with the highest number of rainy days is June (12.1 days).
The months with the least rainy days are January and February (5.5 days).
Average snowfall
Crystal Lake, CT
- Average snowfall in January:
0.71" - Average snowfall in February:
1.5" - Average snowfall in March:
0.59" - Average snowfall in April:
0.55" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Crystal Lake, CT
- Average snowfall days in January:
5.3 days - Average snowfall days in February:
6.4 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
1.1 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.3 days - Average snowfall days in November:
1.6 days - Average snowfall days in December:
3.5 days
The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Crystal Lake, CT
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 0min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 18min - Average sunshine in June:
9h and 12min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 18min - Average sunshine in September:
8h and 30min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 42min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Crystal Lake, CT
- Average sunshine days in January:
21.9 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
19.9 days - Average sunshine days in April:
17.2 days - Average sunshine days in May:
17.3 days - Average sunshine days in June:
15.7 days
- Average sunshine days in July:
17 days - Average sunshine days in August:
18.3 days - Average sunshine days in September:
19.8 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
20.8 days - Average sunshine days in December:
20.4 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is June (15.7 days).
Average UV index
Crystal Lake, CT
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Crystal Lake, CT
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Crystal Lake, CT
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).
