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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Haddam, Connecticut, is another cold winter month, with an average temperature varying between 34.7°F (1.5°C) and 22.8°F (-5.1°C). In Haddam, the lowest temperatures are generally noted in January, averaging a high of 34.7°F (1.5°C) and a low of 22.8°F (-5.1°C). Weather in January »
Weather in February
February, the last month of the winter in Haddam, is another cold month, with an average temperature varying between 23.4°F (-4.8°C) and 37.8°F (3.2°C). Haddam, Connecticut, notes an average high-temperature of a still cold 37.8°F (3.2°C) in February, displaying minor variation from January. Weather in February »
Weather in March
March, the first month of the spring in Haddam, is a frosty month, with an average temperature varying between 45°F (7.2°C) and 30.6°F (-0.8°C). Haddam in March denotes a subtle temperature transition, adjusting from an average high of an icy 37.8°F (3.2°C) in February to a chilly 45°F (7.2°C). Weather in March »
Weather in April
April is a mild spring month in Haddam, Connecticut, with temperature in the range of an average low of 40.3°F (4.6°C) and an average high of 56.7°F (13.7°C). April witnesses an increase in the average high-temperature, moving from a frosty 45°F (7.2°C) in March to a refreshing 56.7°F (13.7°C). Weather in April »
Weather in May
May, the last month of the spring in Haddam, is a pleasant month, with an average temperature fluctuating between 68°F (20°C) and 49.5°F (9.7°C). Haddam's weather in May presents a rise in the average high-temperature, moving from a moderate 56.7°F (13.7°C) in April to a pleasant 68°F (20°C). Weather in May »
Weather in June
June, the first month of the summer in Haddam, is a moderately hot month, with an average temperature ranging between min 57.2°F (14°C) and max 75.7°F (24.3°C). With the onset of June, Haddam experiences a subtle temperature shift, with the average high-temperature moving from a pleasant 68°F (20°C) in May to a moderately hot 75.7°F (24.3°C). Weather in June »
Weather in July
July, like June, in Haddam, Connecticut, is a moderately hot summer month, with temperature in the range of an average high of 82.6°F (28.1°C) and an average low of 63.9°F (17.7°C). In Haddam, Connecticut, the month of July is known for its highest average temperatures, reaching a high of 82.6°F (28.1°C) and a low of 63.9°F (17.7°C). The average heat index in July is computed to be a hot 89.6°F (32°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Haddam, Connecticut, with an average temperature ranging between max 80.4°F (26.9°C) and min 62.8°F (17.1°C). July's transformation into August witnesses an average high-temperature of a still warm 80.4°F (26.9°C), noting a minor change from the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Haddam, Connecticut, with an average temperature varying between 56.7°F (13.7°C) and 73.4°F (23°C). With the onset of September, Haddam's average high-temperature slightly adjusts, moderately receding from August's warm 80.4°F (26.9°C) to a still moderately hot 73.4°F (23°C). Weather in September »
Weather in October
October, like September, in Haddam, Connecticut, is another refreshing autumn month, with an average temperature ranging between min 48°F (8.9°C) and max 61.7°F (16.5°C). With the beginning of October, the average high-temperature shows a decrease, transitioning from a moderately hot 73.4°F (23°C) in September to an enjoyable 61.7°F (16.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Haddam, is another cool month, with temperature in the range of an average high of 50°F (10°C) and an average low of 37.6°F (3.1°C). November implies a gentle temperature shift, with average high-temperatures reducing from October's enjoyable 61.7°F (16.5°C) to a fresh 50°F (10°C). Weather in November »
Weather in December
December, the first month of the winter in Haddam, is also a wintry month, with an average temperature fluctuating between 40.6°F (4.8°C) and 30°F (-1.1°C). December's onset brings a slight change in high-temperatures, falling from a fresh 50°F (10°C) in November to a cold 40.6°F (4.8°C). Weather in December »
[Resources]Frequently asked questions
What part of the year is the coldest in Haddam?
January, on average, is the coldest month in Haddam, registering a high temperature of 34.7°F (1.5°C) and a low of 22.8°F (-5.1°C).
How much does it rain in Haddam?
Throughout the year, in Haddam, Connecticut, there are 109.9 rainfall days, and 11.14" (283mm) of precipitation is accumulated.
When does it snow in Haddam?
January through May, November and December are months with snowfall in Haddam.
How much does it snow in Haddam?
Throughout the year, in Haddam, there are 19.9 snowfall days, and 3.7" (94mm) of snow is accumulated.
What is the month with the lowest UV index in Haddam?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
What is the most humid month in Haddam?
The most humid month in Haddam is February, with an average relative humidity of 78%.
What is the month with the least sunshine in Haddam?
With an average of 4.5h of sunshine, February has the least sunshine of the year.
What is the snowiest month in Haddam?
March is the month with the most snowfall in Haddam, Connecticut. Snow falls for 4.9 days and accumulates 1.14" (29mm) of snow.
When is Daylight Saving Time (DST) in Haddam?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Haddam, 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.
What is the least humid month in Haddam?
The least humid month is April, with an average relative humidity of 72%.
When it does not snow in Haddam?
June through October are months without snowfall.
When are the longest days in Haddam?
The month with the longest days is June, with an average of 15h and 6min of daylight.
What are the months with the highest UV index in Haddam?
The months with the highest UV index in Haddam are June through August, with an average maximum UV index of 6.
What is the hottest time of year in Haddam?
Haddam's warmest temperatures are experienced in July, with average high temperatures of 82.6°F (28.1°C) and lows of 63.9°F (17.7°C).
What is the rainiest month in Haddam?
July is the month with the most rainfall in Haddam. Rain falls for 12.7 days and accumulates 1.18" (30mm) of precipitation.
What are the months with the most sunshine in Haddam?
July and August, with an average of 10.1h of sunshine, are months with the most sunshine in Haddam, Connecticut.
What is the driest month in Haddam?
The month with the least rainfall in Haddam, Connecticut, is September, when the rain falls for 8.5 days and typically collects 0.39" (10mm) of precipitation.
What is the month with the shortest days in Haddam?
December has the shortest days of the year, with an average of 9h and 12min of daylight.
Average temperature
Haddam, CT
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.7°F).
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure
Haddam, 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:
29.98"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:
30.05"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
Haddam, CT
- Average wind speed in January:
8.6mph - Average wind speed in February:
8.4mph - Average wind speed in March:
8.6mph - Average wind speed in April:
8.2mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.5mph - Average wind speed in November:
7.8mph - Average wind speed in December:
8.4mph
The windiest months (with the highest average wind speed) are January and March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity
Haddam, CT
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall
Haddam, CT
- Average rainfall in January:
0.75" - Average rainfall in February:
0.63" - Average rainfall in March:
0.75" - Average rainfall in April:
1.1" - Average rainfall in May:
0.91" - Average rainfall in June:
1.06"
- Average rainfall in July:
1.18" - Average rainfall in August:
1.02" - Average rainfall in September:
0.39" - Average rainfall in October:
1.06" - Average rainfall in November:
1.14" - Average rainfall in December:
1.14"
The wettest month (with the highest rainfall) is July (1.18").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days
Haddam, CT
- Average rainfall days in January:
5.9 days - Average rainfall days in February:
6.4 days - Average rainfall days in March:
9.2 days - Average rainfall days in April:
10.6 days - Average rainfall days in May:
10.9 days - Average rainfall days in June:
9.8 days
- Average rainfall days in July:
12.7 days - Average rainfall days in August:
11.1 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
9.2 days - Average rainfall days in November:
7 days - Average rainfall days in December:
8.6 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is January (5.9 days).
Average snowfall
Haddam, CT
- Average snowfall in January:
0.67" - Average snowfall in February:
0.63" - Average snowfall in March:
1.14" - Average snowfall in April:
0.04" - Average snowfall in May:
0.35" - Average snowfall in June:
0"
The month with the highest snowfall is March (1.14").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Haddam, CT
- Average snowfall days in January:
4.6 days - Average snowfall days in February:
5.2 days - Average snowfall days in March:
4.9 days - Average snowfall days in April:
0.6 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 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
3.7 days
The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Haddam, CT
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
4h and 3min - Average sunshine in March:
5h and 5min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 0min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 2min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days
Haddam, CT
- Average sunshine days in January:
20.2 days - Average sunshine days in February:
17.6 days - Average sunshine days in March:
17.2 days - Average sunshine days in April:
17.3 days - Average sunshine days in May:
17.9 days - Average sunshine days in June:
17.6 days
- Average sunshine days in July:
16.3 days - Average sunshine days in August:
16.9 days - Average sunshine days in September:
19.1 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
20.9 days - Average sunshine days in December:
19.2 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is July (16.3 days).
Average UV index
Haddam, 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
Haddam, CT
The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility
Haddam, CT
The months with the highest visibility are January, March, April, September, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July and August (5mi).
Haddam, Connecticut, USA
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