Climate and monthly weather forecastShelton, CT
Climate and monthly weather forecast
The climate of Shelton
Shelton, Connecticut, reveals a Cfa - Humid subtropical climate under the Köppen classification, having no dry season. Situated in North America, this region experiences a comprehensive yearly fluctuation in weather conditions. Through the changing seasons, the temperatures vary significantly, starting from the chilly lows of 24.6°F (-4.1°C) in January to soaring up to the warm highs of 81.9°F (27.7°C) in July.Humidity, though consistent, shows a slight swing between 72% in the drier months of April and 76% in the more humid months of May, October, November, and December. Rainfall also exhibits varying quantities, from a minimal 2.24" (57mm) in September to a considerable 4.06" (103mm) in December. Days experiencing rainfall range from 9.4 in January to 18 in July, leading to moist conditions during these periods.
Winter months experience snowfall - the most significant accumulation reaching up to 3.23" (82mm) in February. Correspondingly, the number of days witnessing snowfall dips to zero from May to November, having considerable peaks in January and February of 7.5 and 7.8 days, respectively. Unique to this location is the diverse sunlight exposure and UV index pattern, with daylight hours fluctuating from a short 9.2 hours in December to a long-standing 15.1 hours in June. Consequently, the UV index steps up from a low of 2 during the cooler months to a high of 6 in the sun-drenched summer months from June to August.
Visibility uniformly registers at six miles throughout the year. The cloud cover transitions from 30% in the summer months to 48% during February and December. Pressure records marginally varying values between 29.93inHg (1013.5mbar) and 30.09inHg (1019mbar). The breezy months of January, February, November, and December, with an average wind speed of 9.3mph (15km/h), contrary to the calmer months of July and August at 6.2mph (10km/h), add another layer to the varied atmospheric conditions.
The best time to visit Shelton
Ideal environmental conditions for visiting Shelton occur between May and September. Maximum temperatures exhibit a comfortable range from 66.7°F (19.3°C) to 80.2°F (26.8°C). When combined with low wind speeds and the peak daylight duration, these months offer ample opportunity for open-air activities. Furthermore, the UV index, though at its highest, is still manageable with appropriate sun protection measures.The worst time to visit Shelton
Adverse weather situations strike Shelton during the colder stretch from November to March. During these months, the city faces lower average temperatures of 24.6°F (-4.1°C) to 44.2°F (6.8°C). Snowfall, while not heavily accumulating, nevertheless adds to the chill factor. The shortest daylight durations between 9.2 to 12 hours also limit sightseeing opportunities.Spring weather in Shelton
A refreshing transition occurs in Shelton as spring slides in from March to May. Gradually rising temperatures from an average low of 32°F (0°C) to the more inviting highs of 66.7°F (19.3°C) denote this period. A notable growth in daylight hours from 12 to 14.5 hours accompanies the rising temperatures. However, this increase in daylight brings along a higher monthly average rainfall of 3.11" (79mm) in April, the highest for the season.Summer weather in Shelton
The prime of year is during the summer months of June to August. Temperatures culminate in July with the city basking in the warmest average conditions of 81.9°F (27.7°C). The heightened UV index from 5 to 6 during these months requires the application of sunscreen for protection against sunburn. Showers become more frequent with 17.5 days of precipitation in June, though the quantity does not exceed 3.43" (87mm) in July.Autumn weather in Shelton
Autumn brings a considerable change in Shelton between September and November. The cooling period begins, with average temperatures descending from 73°F (22.8°C) in September to 49.8°F (9.9°C) in November. Daylight hours also see a reduction from 12.5 to 9.9 hours in this period. Rainfall sees an erratic pattern, with highest quantities being recorded in October.Winter weather in Shelton
The chilly embrace of winter extends from December to February in Shelton. Temperatures plummet to average lows of 24.6°F (-4.1°C) in January, while the high temperatures do not exceed 37°F (2.8°C) in February. The visibility, however, remains at 6 miles despite the snowfall that Shelton experiences during this time, which accumulates up to 3.23" (82mm) in February. With reduced daylight hours from 9.2 to 10.6, the UV index also decreases to a low value of 2.Weather in January
January portrays itself as the start of a freezing winter in Shelton, Connecticut with average high temperatures only reaching 34.7°F (1.5°C) and lows plummeting to 24.6°F (-4.1°C). After the festive season ends, this weather seems to set the perfect mood for some cozy indoor gatherings. Weather in January »Weather in February
Rolling into February, temperatures are still relatively low in Shelton, Connecticut with little difference from January's weather. Average high temperatures slightly rise to 37°F (2.8°C) but the lows remain consistent at 25.2°F (-3.8°C). Weather in February »Weather in March
March is the transitional month in Shelton, Connecticut, signifying the thawing of winter and the stirring of spring. Temperatures begin to hike with the average high and low recorded at 44.2°F (6.8°C) and 32°F (0°C) respectively. Weather in March »Weather in April
April marks the full onset of spring in Shelton, Connecticut. Temperatures witness a remarkable elevation, with highs averaging 55.4°F (13°C) and lows at 41.5°F (5.3°C). The city receives the minimal snowfall of only 0.2" (5mm) in this month, rendering it nearly snow free. Weather in April »Weather in May
May experiences a pleasant weather with temperatures soaring to an average high of 66.7°F (19.3°C) and lows comfortably sitting at 51.4°F (10.8°C). The city gets no snowfall, effectively bid goodbye to the trailing edges of winter and welcoming the onset of summer. Weather in May »Weather in June
June amplifies the feeling of summer in Shelton, Connecticut, as the temperatures spike up to an average high of 74.8°F (23.8°C) and lows at around 59.5°F (15.3°C). This month marks the arrival of the long-awaited peak of summer. Weather in June »Weather in July
July stands as the warmest month in Shelton, Connecticut, with average high temperatures hitting 81.9°F (27.7°C) and lows hovering around 66.7°F (19.3°C). This is indeed the peak of summer, characterized by long, balmy days and short, warm nights. Weather in July »Weather in August
August in Shelton, Connecticut sees a minor dip in temperature, with the average high and low stationed at 80.2°F (26.8°C) and 65.5°F (18.6°C) respectively. Albeit the slight decrease, the weather still remains warm and inviting. Weather in August »Weather in September
The onset of fall characterizes September in Shelton, Connecticut. Temperatures begin their gradual descent with average highs at 73°F (22.8°C) and lows at 59.4°F (15.2°C). There's no snowfall, stapling it as the last month before winter starts knocking on the door. Weather in September »Weather in October
October forecasts a significant chill in the air in Shelton, Connecticut, as lows drop to an average of 50°F (10°C), though highs still hover around 61.7°F (16.5°C). The scenic beauty of the city is at its peak, as the leaves transform from green to shades of rust, orange and brown. Weather in October »Weather in November
November marks the periphery of winter with the temperatures in Shelton, Connecticut dropping significantly to an average high of 49.8°F (9.9°C) and low at 39.2°F (4°C). Snowfall records a subtle rise at 0.35" (9mm), indicating the imminent arrival of winter. Weather in November »Weather in December
December welcomes winter in Shelton, Connecticut, with average high temperatures reaching 40.3°F (4.6°C) and lows confined to 31.3°F (-0.4°C). The snowfall rises sharply to 2.4" (61mm), confirming the full arrival of winter. Weather in December »Updated: Jul 10, 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, with its average high-temperature of 34.7°F (1.5°C) and an average low-temperature of 24.6°F (-4.1°C), holds the record as the coldest month.
Throughout the year, there are 169.1 rainfall days, and 36.26" (921mm) of precipitation is accumulated.
Months with snowfall in Shelton are January through April, November and December.
Throughout the year, in Shelton, there are 27.3 snowfall days, and 11.42" (290mm) of snow is accumulated.
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 77%.
February is the month with the most snowfall. Snow falls for 7.8 days and accumulates 3.23" (82mm) of snow.
The month with the least sunshine is February, with an average of 4.7h of sunshine.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.
With an average relative humidity of 72%, April is the least humid month.
May through October are months without snowfall in Shelton.
The month with the longest days is June, with an average of 15h and 6min of daylight.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
Shelton's July weather, marked by an average high temperature of 81.9°F (27.7°C) and an average low temperature of 66.7°F (19.3°C), is the warmest in the year.
July and August, with an average of 10.5h of sunshine, are months with the most sunshine.
September is the month with the least rainfall. Rain falls for 13.1 days and accumulates 2.24" (57mm) of precipitation.
The month with the most rainfall is December, when the rain falls for 12.8 days and typically aggregates up to 4.06" (103mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Shelton, CT
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (34.7°F).
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure
Shelton, CT
- Average pressure in January:
30.04"Hg - Average pressure in February:
30.02"Hg - Average pressure in March:
30.05"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:
30.09"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Shelton, CT
- Average wind speed in January:
9.6mph - Average wind speed in February:
9.3mph - Average wind speed in March:
9.3mph - Average wind speed in April:
8.7mph - Average wind speed in May:
7.2mph - Average wind speed in June:
6.6mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7mph - Average wind speed in October:
8.4mph - Average wind speed in November:
8.9mph - Average wind speed in December:
9.3mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity
Shelton, CT
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (72%).
Average rainfall
Shelton, CT
- Average rainfall in January:
2.48" - Average rainfall in February:
2.56" - Average rainfall in March:
2.91" - Average rainfall in April:
3.11" - Average rainfall in May:
2.83" - Average rainfall in June:
3.07"
- Average rainfall in July:
3.43" - Average rainfall in August:
3.03" - Average rainfall in September:
2.24" - Average rainfall in October:
3.5" - Average rainfall in November:
3.03" - Average rainfall in December:
4.06"
The wettest month (with the highest rainfall) is December (4.06").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days
Shelton, CT
- Average rainfall days in January:
9.4 days - Average rainfall days in February:
10.3 days - Average rainfall days in March:
13.7 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
17.2 days - Average rainfall days in June:
17.5 days
- Average rainfall days in July:
18 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
13.1 days - Average rainfall days in October:
14.8 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
12.8 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (9.4 days).
Average snowfall
Shelton, CT
The month with the highest snowfall is February (3.23").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Shelton, CT
- Average snowfall days in January:
7.5 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
5.5 days - Average snowfall days in April:
0.7 days - Average snowfall days in May:
0.2 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:
1 days - Average snowfall days in December:
4.6 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Shelton, CT
- Average daylight in January:
9h and 36min - 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 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - 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 54min - Average daylight in December:
9h and 18min
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 18min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 30min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Shelton, CT
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
12.3 days - Average sunshine days in March:
13.4 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
11.4 days - Average sunshine days in September:
14.4 days - Average sunshine days in October:
14.7 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
14.5 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.3 days).
Average UV index
Shelton, 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
Shelton, CT
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility
Shelton, CT
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
