Climate and monthly weather forecastNorwich, CT
Climate and monthly weather forecast
The climate of Norwich
Norwich, Connecticut resides firmly within the Dfb zone according to the Köppen climate classification, meaning it experiences a humid continental climate with no dry season and a warm summer. Geographically, its location in the Northeastern United States marks it as an area impacted by a range of weather conditions annually.Temperature throughout the year in Norwich varies considerably, with high average temperatures ranging from 34.9°F (1.6°C) in January to 81.7°F (27.6°C) in July, while low average temperatures shift from 23.4°F (-4.8°C) during January to 64.6°F (18.1°C) in July. The humidity levels remain relatively uniform all year round, fluctuating from 72% to 78%. Precipitation patterns also maintain consistency, with monthly rainfall values ranging from 1.61" (41mm) to 3.7" (94mm). It is interesting to note that snowfall mainly occurs from December to March, with minimal to no snowfall recorded from May to November.
Daylight variations in Norwich provide a diverse range; shorter daylights of 9.2 hours in December extend to 15.1 hours in June. Sunshine duration follows a similar pattern, from 4.6 hours in December to 10.2 hours from July to August. Regarding wind, it maintains an average speed from 6.1 to 9.4mph (15.1km/h) with gust values reaching 14.5mph (23.3km/h).
The best time to visit Norwich
With a blend of mild temperatures and moderate rainfall, the period from late spring to early fall emerges as the optimum time to visit Norwich. This interval, specifically from May to September, shows average high temperatures ranging from 66.7°F (19.3°C) to 80.2°F (26.8°C) and low temperatures from 50°F (10°C) to 64.6°F (18.1°C). The rain averages from 2.56" (65mm) to 2.87" (73mm) with more extended daylight hours, peaking to a maximum of 15.1 hours in June.The worst time to visit Norwich
The winter months, specifically from December to February, encapsulate what can be deemed as the least desirable time for a visit to Norwich. This period registers the coldest temperatures, plummeting to 23.4°F (-4.8°C) for the lows and only reaching up to 37.8°F (3.2°C) for the highs. Snowfall peaks around this time, reaching up to 3.43" (87mm) and the duration of daylight recedes to approximately 9.6 hours in January.Spring weather in Norwich
Spring in Norwich heralds the commencement of warmer temperatures and escalating levels of precipitation. Average high temperatures elevate from 44.2°F (6.8°C) in March to 66.7°F (19.3°C) in May while lows see a hike from 31.1°F (-0.5°C) in March to 50°F (10°C) in May. Rainfall levels showcase a staggered increase from 2.83" (72mm) in March to a peak of 3.27" (83mm) in April before receding to 2.56" (65mm) by May-end.Summer weather in Norwich
Summer in Norwich is defined by warm temperatures, higher humidity, and relatively lesser rainfall. The average highs and lows oscillate between 74.5°F (23.6°C) to 81.7°F (27.6°C) and 57.4°F (14.1°C) to 64.6°F (18.1°C) respectively. Rainfall fluctuates around the 2.83" (72mm) mark, with June receiving the highest rainfall.Autumn weather in Norwich
Autumn witnesses a significant drop in temperatures, with average highs dwindling from 73.2°F (22.9°C) in September to 50.2°F (10.1°C) in November, and average lows dropping from 57.4°F (14.1°C) to 38.1°F (3.4°C). Precipitation rises gradually from 1.61" (41mm) in September, peaking to 3.23" (82mm) in October, before again declining to 2.95" (75mm) in November.Winter weather in Norwich
Winter is Norwich's coldest season, with temperatures reaching their yearly lows. Average highs range from 50.2°F (10.1°C) in December to 34.9°F (1.6°C) in January and average lows drop from 29.8°F (-1.2°C) to 23.4°F (-4.8°C) in the same period. Snowfall is a staple feature of the season, with its peak in January at 3.43" (87mm), lessening by March.Weather in January
Connecticut's velvet winters roll out in full swing during January in Norwich. Trees disrobe their foliage welcoming a snowy mantle with snowfall peaking at 2.52" (64mm). Slight chills escalate as this month experiences lower temperatures compared to December. Weather in January »Weather in February
In Norwich, February heralds an atmosphere slightly warmer than January. It sees a slight uptick in temperatures but the snowfall inches up to 2.8" (71mm). With that, the city continues to embrace the winter chill, leaving streets aglow with shimmering snow. Weather in February »Weather in March
The arrival of March in Norwich, Connecticut ushers in the delightful beginnings of the spring season. As compared to February, the temperatures rise steadily, however, snowfall reaches its zenith at an average of 3.43" (87mm). The winds start to lose their biting edge, giving rise to more sunny days. Weather in March »Weather in April
April comes as a breath of fresh air in Norwich, with average temperatures climbing up to 55.9°F (13.3°C) during the day and dipping to 40.6°F (4.8°C) at night. It is quite the departure from the snowy March, with snowfall almost becoming negligible. Weather in April »Weather in May
May brings along the true spirit of spring in Norwich, it's a delightful transition from the cooler April. There's a noticeable increase in temperatures, but the rainfall does catch the eye with 2.56" (65mm) on average. The city starts to buzz with outdoor activities, making the most of the increased daylight and sunshine hours. Weather in May »Weather in June
June marks the onset of summers in Norwich. The temperatures spike up during this month, but it also sees a welcome increase in daylight hours. It is a month blessed with the longest sunshine duration, reaching its peak at 15.1 hours a day. Weather in June »Weather in July
The month of July holds the crown as the warmest month in Norwich, with temperatures soaring to an average high of 81.7°F (27.6°C). Rainfall sees a minor increase, clocking in at 2.87" (73mm) in total. Residents find a welcome respite in the form of brief, sporadic showers which temper the scorching summer days. Weather in July »Weather in August
In Norwich, August presents a continuation of July's typical summer weather, but begins its gradual transition towards fall. The temperatures exhibit a slight decline compared to July, however, still remain quite high. The rainfall also sees a decrease from the previous month. Weather in August »Weather in September
Norwich transitions from summer to fall in September, with temperatures starting to cool down. The rainfall sees a decrease, marking the lowest in the year at 1.61" (41mm). Days start to shorten, paving the way for longer and cooler nights. Weather in September »Weather in October
October brings along the full glory of the autumn season in Norwich, Connecticut. A drop in temperatures is witnesses as compared to September, although rainfall shows an upward trend with an average of 3.23" (82mm). The trees are full of vibrant autumnal colors of orange and red, contrasting beautifully with the clear, blue skies. Weather in October »Weather in November
November witnesses a steep drop in temperatures, signaling the advent of winter in Norwich. The weather markedly shifts from the warm October days with snowfall making an appearance after a long hiatus. Despite bringing in the cold, it spoils residents and visitors with long sunshine hours, reaching up to 17.4 days. Weather in November »Weather in December
The frigid winter takes center stage in Norwich, Connecticut come December. There's a stark contrast in weather from the end of November, with the mercury dipping even further and snowfall settling at 1.73" (44mm). The shortest daylight duration of the year takes over the city, resulting in longer and chillier nights. Weather in December »Updated: Jul 31, 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
In Norwich, January is known for its average lowest temperatures, reaching a high of 34.9°F (1.6°C) and a low of 23.4°F (-4.8°C).
Throughout the year, there are 156.4 rainfall days, and 33.54" (852mm) of precipitation is accumulated.
January through May, November and December are months with snowfall.
Throughout the year, there are 26.4 snowfall days, and 11.14" (283mm) 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.
February, June, July and September, with an average relative humidity of 78%, are most humid months.
March is the month with the most snowfall. Snow falls for 6 days and accumulates 3.43" (87mm) of snow.
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.
April is the least humid month, with an average relative humidity of 72%.
June through October are months without snowfall.
The month with the longest days is June, with an average of 15h and 6min of daylight.
June through August, with an average maximum UV index of 6, are months with the highest UV index.
Norwich registers the average highest temperatures during July, with peaks of 81.7°F (27.6°C) and lows of 64.6°F (18.1°C).
The months with the most sunshine are July and August, with an average of 10.2h of sunshine.
The month with the least rainfall is September, when the rain falls for 11.8 days and typically collects 1.61" (41mm) of precipitation.
The month with the most rainfall is December, when the rain falls for 11.3 days and typically aggregates up to 3.7" (94mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 12min of daylight.
The month with the least sunshine is December, with an average of 4.6h of sunshine.
Average temperature
Norwich, CT
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (34.9°F).
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure
Norwich, CT
- Average pressure in January:
30.02"Hg - Average pressure in February:
30"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
Norwich, CT
- Average wind speed in January:
9.4mph - Average wind speed in February:
9.2mph - Average wind speed in March:
9.3mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7.4mph - Average wind speed in June:
6.6mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.1mph - Average wind speed in September:
6.8mph - Average wind speed in October:
8mph - Average wind speed in November:
8.4mph - Average wind speed in December:
8.9mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity
Norwich, CT
The months with the highest relative humidity are February, June, July and September (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall
Norwich, CT
- Average rainfall in January:
2.6" - Average rainfall in February:
2.48" - Average rainfall in March:
2.83" - Average rainfall in April:
3.27" - Average rainfall in May:
2.56" - Average rainfall in June:
2.83"
The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days
Norwich, CT
- Average rainfall days in January:
9 days - Average rainfall days in February:
9.4 days - Average rainfall days in March:
12.1 days - Average rainfall days in April:
15.2 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
13.8 days - Average rainfall days in November:
10.3 days - Average rainfall days in December:
11.3 days
The months with the highest number of rainy days are May and July (16.3 days).
The month with the least rainy days is January (9 days).
Average snowfall
Norwich, CT
- Average snowfall in January:
2.52" - Average snowfall in February:
2.8" - Average snowfall in March:
3.43" - Average snowfall in April:
0.04" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is March (3.43").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Norwich, CT
- Average snowfall days in January:
6.6 days - Average snowfall days in February:
7.3 days - Average snowfall days in March:
6 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:
0.8 days - Average snowfall days in December:
4.8 days
The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Norwich, 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 12min
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:
5h and 0min - Average sunshine in February:
4h and 42min - Average sunshine in March:
5h and 54min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 6min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 24min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 36min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days
Norwich, CT
- Average sunshine days in January:
16.7 days - Average sunshine days in February:
13.2 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
12.9 days - Average sunshine days in June:
11.6 days
- Average sunshine days in July:
12.4 days - Average sunshine days in August:
12.3 days - Average sunshine days in September:
15.6 days - Average sunshine days in October:
15.6 days - Average sunshine days in November:
17.4 days - Average sunshine days in December:
15.9 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (11.6 days).
Average UV index
Norwich, 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
Norwich, CT
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Norwich, CT
The months with the highest visibility are January, February, March, April, September, October, November and December (6mi).
The months with the lowest visibility are May, June, July and August (5mi).
