Waterbury, CT weather and climate in 2025
Day
28 °C
Night
16 °C
Sea
22 °C
Precipitation
102 mm
in month
Rainy days
11 days
in month
Daylight
14 hours
average
Sunshine
8 hours
average
Humidity
73 %
Day
28 °C
Night
16 °C
Sea
22 °C
Precipitation
102 mm
in month
Rainy days
11 days
in month
Daylight
14 hours
average
Sunshine
8 hours
average
Humidity
73 %
Overview: Waterbury, CT
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Weather overview for Waterbury, CT
Weather overview
Waterbury, CT (United States of America) in general has a mild continental climate. The day temperatures range from 2 °C (35 °F) in January to 29 °C (84 °F) in July. The highest night temperatures could be experienced in July with 17 °C (62 °F), the lowest in January with -8 °C (18 °F). The least rainy month in Waterbury, CT is October with its 9 days of rain, the rainiest month is May, when it rains 12 days.
January weather
The day temperature reaches its minimum, the value of this measure is 2 °C (35 °F) in Waterbury, CT, and the minimum of the night temperature can be noticed too in this month. The beginning of the descent of the rainfall amount could be noticed, with its value of 85 mm (3.35 in), and the number of rainy days descent's start could be observed too, the value of this measure is 11 days. The number of sun hours (without clouds) starts to rise, with its value of 5 hours.
February weather
The number of rainy days descents similarly to the previous month, with its value of 10 days in Waterbury, CT, while the rainfall amount reaches its minimum. The night temperature rise's start could be observed, and the day temperature rise's start could be observed as well, with its value of 4 °C (39 °F). The number of sun hours (without clouds) rises similarly to the previous month, the value of this measure is 6 hours.
March weather
The day temperature rises similarly to the previous month, with its value of 9 °C (47 °F) in Waterbury, CT, and the night temperature rises similarly to the previous month too, with its value of -2 °C (28 °F). The beginning of the rise of the rainfall amount could be noticed, with its value of 101 mm (3.98 in), and the number of rainy days starts to rise as well, the value of this measure is 11 days. The rise of the number of sun hours (without clouds) can be observed, with its value being 7 hours. The wind speed reaches its maximum, with its value of 4.
April weather
The rise of the day temperature can be observed, the value of this measure is 15 °C (59 °F) in Waterbury, CT, and the rise of the night temperature can be observed too. The rise of the rainfall amount can be observed, with its value being 109 mm (4.28 in). The humidity is on its minimum in April. The rise of the number of sun hours (without clouds) can be observed, its value is 8 hours.
May weather
The rise of the day temperature can be observed, with its value of 21 °C (70 °F) in Waterbury, CT, and the rise of the night temperature can be observed too, the value of this measure is 8 °C (47 °F). The tourist season slowly starts. The number of rainy days is on its maximum, the value of this measure is 12 days. The rise of the number of sun hours (without clouds) can be observed.
June weather
The tourist season is close to its peak in Waterbury, CT. The maximum of the rainfall amount can be noticed in June. The rise of the night temperature can be observed, its value is 14 °C (56 °F), and the day temperature rises similarly to the previous month too, its value is 26 °C (79 °F). The number of sun hours (without clouds) rises similarly to the previous month, its value is 9 hours. The maximum of the day length is observable, its value is 15 hours.
July weather
The tourist season continues in Waterbury, CT. The day temperature reaches its maximum, the value of this measure is 29 °C (84 °F), and the maximum of the night temperature can be noticed too, with its value of 17 °C (62 °F). The rainfall amount starts to descent, its value is 107 mm (4.20 in), and the number of rainy days starts to descent too, with its value of 11 days. The number of sun hours (without clouds) reaches its maximum in July.
August weather
The day temperature starts to descent, with its value of 28 °C (82 °F) in Waterbury, CT, and the beginning of the descent of the night temperature could be noticed too in this month. There is pending tourist season. The minimum of the wind speed can be noticed, the value of this measure is 3. The number of sun hours (without clouds) starts to descent, its value is 8 hours.
September weather
The ongoing tourist season is noticeable in September in Waterbury, CT. The beginning of the descent of the number of rainy days could be noticed, with its value of 10 days. The descent of the night temperature can be observed, with its value being 12 °C (53 °F), and the day temperature continues to descent too, its value is 24 °C (74 °F). The number of sun hours (without clouds) descents similarly to the previous month, with its value of 7 hours. The maximum of the humidity can be noticed, the value of this measure is 74 %.
October weather
The number of rainy days reaches its minimum, its value is 9 days in Waterbury, CT, while the beginning of the rise of the rainfall amount could be noticed in this month. The descent of the day temperature can be observed, and the night temperature descents similarly to the previous month too, the value of this measure is 5 °C (41 °F). The number of sun hours (without clouds) continues to descent, with its value of 6 hours.
November weather
The day temperature descents similarly to the previous month, its value is 11 °C (52 °F) in Waterbury, CT, and the night temperature continues to descent too, its value is 1 °C (33 °F). The beginning of the rise of the number of rainy days could be noticed in this month. The descent of the number of sun hours (without clouds) can be observed, the value of this measure is 5 hours.
December weather
The number of rainy days continues to rise, with its value being 12 days in Waterbury, CT. The night temperature continues to descent, the value of this measure is -5 °C (24 °F), and the day temperature continues to descent as well, with its value being 5 °C (40 °F). The number of sun hours (without clouds) reaches its minimum, its value is 4 hours. The minimum of the day length is observable, its value is 9 hours.
FAQs
Is there a dry season in April in Waterbury, CT?
No, April is not a dry month in Waterbury, CT, expect rain approximately 11 days in a month.
What is the average number of rainy days in Waterbury, CT in May?
In Waterbury, CT in May, we can expect 12 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.9 days of the week, or in general - 41 % days. An increase of 1 day compared to the previous month. This means that the value difference is 11 %.
What is the sea temperature in Waterbury, CT in June?
In Waterbury, CT in June expect the sea to be warm at 17 °C (62 °F). At this sea temperature, swimming probably won't be the best experience. You probably won't like to stay in water for a long time. On the other hand, there are a minority of people who seek these conditions. An increase of 5 °C (41 °F) compared to the previous month.
What temperature can I expect during the day in July in Waterbury, CT?
The average daily temperature in Waterbury, CT in July is 29 °C (84 °F). The ideal temperature for enjoying sunbathing by the water and a good temperature for other activities. For some people, it will be too hot in the direct sunlight and the stay may not be so pleasant. This indicator is higher by 3 °C (37 °F) than in the previous month. Don't forget to pack flip-flops, sunscreen, and a hand fan if necessary - it may come in handy.
Is it hot in Waterbury, CT in August?
In August in Waterbury, CT, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
Is there a wet season in Waterbury, CT in September?
No, there is no wet season in September in Waterbury, CT - you can expect 10 days of rain during the month.
Is October a good month to visit Waterbury, CT?
Waterbury, CT can be visited in October - the weather will be moderate. A relatively low temperature of 17 °C (63 °F) may be ideal for walking or outdoor activities, but some people may have a different idea of the holiday. The night temperature of 5 °C (41 °F) is not inviting for evening and night activities except for visiting a bar and having beer or two.
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