Climate and monthly weather forecastBranford, CT
Branford, Connecticut, USA - Climate and weather forecast by month. Detailed climate information with charts - average monthly weather with temperature, pressure, humidity, precipitation, wind, daylight, sunshine, visibility, and UV index data. The month with the least rainfall is September, when the rain falls for 12.9 days and typically collects 2.09" (53mm) of precipitation. Branford's winter months are typically from December to February, characterised by colder temperatures and high chances of snowfall.

Climate and monthly weather forecast
The climate of Branford
When considering the climate of Branford, Connecticut, USA, it falls into the Köppen climate Classification of Cfa, which signifies a humid subtropical climate without a dry season. This is primarily due to Branford's position in the Northern Hemisphere, which exposes it to a variety of atmospheric conditions.Throughout the year, a wide range of weather conditions prevails. The yearly average high temperature ranges from 35.2°F (1.8°C) in January to a peak of 80.4°F (26.9°C) in July, whereas the average low temperature shows a similar pattern, increasing from 25.5°F (-3.6°C) in January to 67.5°F (19.7°C) in July. The tendency of temperatures to fluctuate significantly throughout the year is indicative of Branford's subtropical climate.
Precipitation, an important part of the climate, varies between 2.52 in January to a high of 3.94" (100mm) in December. Rainfall is present throughout the year without any dry period, with most months observing rainfall for around 14 to 17 days. The winter months, especially December, have higher rainfall in terms of inches, despite having fewer rainy days.
Branford is also characterised by a relatively high humidity level. Throughout the year, this value oscillates typically between 73% and 77%. Notably, peak daylight hours occur in June with 15.1 hours, whereas the least amount of daylight is visible in December, with just 9.3 hours.
The best time to visit Branford
Considering the weather parameters, the best time for a visit to Branford would be from late spring to early fall. This period, which comprises the end of May until early September, offers comfortable temperatures between 65.3°F (18.5°C) to 79.7°F (26.5°C). On the aspect of rainfall, May and June receive relatively lesser rainfall, making outdoor activities more feasible. In terms of daily sunshine, July and August offer up to 10.6 hours, and UV Index levels could rise to 6, signifying a moderate risk of harm from unprotected sun exposure.The worst time to visit Branford
The weather conditions during the winter months, particularly from November to February, make this period the least favourable for visiting Branford. During these months, temperatures consistently drop below 50°F (10°C), with January experiencing the lowest mean temperatures of between 25.5°F (-3.6°C) to 35.2°F (1.8°C). These cold temperatures, coupled with an average snowfall of up to 3.11" (79mm) in March with precipitation days between 13 and 15.2, make outdoor activities challenging.Spring weather in Branford
Spring in Branford stretches from March to May. During this period, the temperatures start to rise, reaching up to 65.3°F (18.5°C) in May from a low of 32.9°F (0.5°C) in March. Rainfall is relatively high during spring, especially in April, with an average of 3.15" (80mm) over 15.2 days. The climate becomes humid, and there is also a noticeable increase in daylight, reaching up to 14.5 hours in May, providing bright and longer days.Summer weather in Branford
Between June and August, Branford experiences summertime temperatures that could get as high as 73.6°F (23.1°C) to 80.4°F (26.9°C) and lows of 59.9°F (15.5°C) to 67.5°F (19.7°C). The relative humidity during the summer period hovers around 76% to 77%. July, with an average sunshine of 10.6 hours per day and UV Index of 6, is the best time for sun-seekers.Autumn weather in Branford
Autumn, running from September to November, brings cooler temperatures dovetailed with lesser daylight hours. September experiences an average high of 73°F (22.8°C), which gradually decreases to 50.5°F (10.3°C) by November. Rainfall appears to be high during autumn, particularly in October which receives around 3.5" (89mm) across approximately 14.6 days.Winter weather in Branford
Branford's winter months are typically from December to February, characterised by colder temperatures and high chances of snowfall. The temperature can go as low as 25.5°F (-3.6°C) in January and reaches only up to 41.4°F (5.2°C). Despite the cold temperatures, the average relative humidity during the winter months is similar to the rest of the year, hovering around 74% to 75%. December has the highest amount of rainfall, 3.94" (100mm), and shorter daylight hours, with an average of 9.3 hours.Weather in January
January represents the coldest month in Branford, Connecticut, with the temperature dipping to 25.5°F (-3.6°C) as the lowest average. A dusting of snow can be expected, being the onset of the year's snowfall. Frequent cloud cover, coupled with an average relative humidity of 74%, yields a predominantly chillsome atmosphere. Weather in January »Weather in February
February weather in Branford, Connecticut, sees a slight uplift in temperature from January, though the cold persists and imposes a continual need for winter garments. Snowfall intensifies in February, averaging 2.83" (72mm) for the month, a significant jump from January. Weather in February »Weather in March
Weather conditions in March mark the onset of spring, bringing with it a considerable rise in average temperatures, reaching up to 44.1°F (6.7°C). Snowfall remains a possibility in the early weeks of March, but sightings are generally less frequent compared to the preceding winter months. Weather in March »Weather in April
April experiences a definitive transition into warm weather, shedding the remnants of the freezing season, with temperature averages ascending to the mid-50s°F. With this shift in temperature, previously snowy landscapes are replaced with the first signs of fresh greenery. Weather in April »Weather in May
In May, Branford, Connecticut, fully embraces spring's warmth as the average high thermal readings push up to 65.3°F (18.5°C). The city's unique charm is rivaled only by the beaming sunshine illuminating the blossoming flora. Weather conditions can be whimsical, with scattered showers amid sunny spells producing a characteristic spring charm. Weather in May »Weather in June
June signifies the commencement of summer in Branford, Connecticut, revealing marked changes in weather patterns. The average low temperatures inch closer to a comfortable 59.9°F (15.5°C). Lengthy sunshine-drenched days become a constant feature, and the inviting weather inspires a profusion of outdoor activities. Weather in June »Weather in July
Basking in the glory of summer, July in Branford, Connecticut, experiences the year's highest average temperatures, peaking at 80.4°F (26.9°C). Scorching heat dominates, and weather conditions tilt towards the dry end of the spectrum. Weather in July »Weather in August
August ushers in steady high temperatures in Branford, Connecticut, closely rivaling July's sultry conditions. The heat lingers, but late-summer indications start to materialize as daylight hours marginally decrease. The typically clear summer sky bodes well for astronomical observations, with frequently clear to partly cloudy conditions. Weather in August »Weather in September
September marks the end of summer and the beginning of the fall season in Branford, Connecticut. As the summer heat subsides, average temperatures settle in the early 70s°F, making way for more pleasant weather conditions. The arrival of autumn announces a vibrant display of foliage, adding a distinct hue to the cityscape. Weather in September »Weather in October
October brings along autumn in full swing in Branford, Connecticut, substantially lowering the average temperatures to 61.7°F (16.5°C). This shift in weather is marked by the outdoor scenery transforming into an array of vibrant reds, oranges and yellows. Weather in October »Weather in November
November in Branford, Connecticut, is a tell-tale sign of the impending winter, with notable decreases in daylight hours and average temperatures. The fall foliage starts to wane, shedding the colorful leaves in favor of barren branches. Weather in November »Weather in December
December in Branford, Connecticut, seals the year with wintry weather, showing considerable drops in temperature averages, sinking to 32.2°F (0.1°C) by month's end. The early onset of the cold season is displayed in December’s average snowfall, introducing the city to its first inches of snow. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Branford, CT
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (35.2°F).
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure
Branford, CT
- Average pressure in January:
30.04"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:
30.09"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
Branford, CT
- Average wind speed in January:
10.3mph - Average wind speed in February:
9.9mph - Average wind speed in March:
10mph - Average wind speed in April:
9.3mph - Average wind speed in May:
7.8mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.7mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.6mph - Average wind speed in December:
10mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity
Branford, CT
The month with the highest relative humidity is June (77%).
The month with the lowest relative humidity is April (72%).
Average rainfall
Branford, CT
- Average rainfall in January:
2.52" - Average rainfall in February:
2.52" - Average rainfall in March:
2.95" - Average rainfall in April:
3.15" - Average rainfall in May:
2.76" - Average rainfall in June:
2.95"
- Average rainfall in July:
3.23" - Average rainfall in August:
2.99" - Average rainfall in September:
2.09" - Average rainfall in October:
3.5" - Average rainfall in November:
3.07" - Average rainfall in December:
3.94"
The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days
Branford, CT
- Average rainfall days in January:
9.6 days - Average rainfall days in February:
10.3 days - Average rainfall days in March:
13.4 days - Average rainfall days in April:
15.2 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
17.6 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
14.6 days - Average rainfall days in November:
10.6 days - Average rainfall days in December:
13 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is January (9.6 days).
Average snowfall
Branford, CT
- Average snowfall in January:
2.09" - Average snowfall in February:
2.83" - Average snowfall in March:
3.11" - Average snowfall in April:
0.24" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is March (3.11").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Branford, CT
- Average snowfall days in January:
7.3 days - Average snowfall days in February:
7.7 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
0.7 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:
1 days - Average snowfall days in December:
4.3 days
The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Branford, 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 18min - 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 48min - 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 36min - Average sunshine in August:
10h and 36min - Average sunshine in September:
9h and 0min - Average sunshine in October:
6h and 6min - Average sunshine in November:
5h and 42min - Average sunshine in December:
4h and 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Branford, CT
- Average sunshine days in January:
16 days - Average sunshine days in February:
12.1 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
11.3 days
- Average sunshine days in July:
12.4 days - Average sunshine days in August:
11.5 days - Average sunshine days in September:
14.1 days - Average sunshine days in October:
14.9 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
14.8 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (11.3 days).
Average UV index
Branford, 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
Branford, 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 29).
Average visibility
Branford, 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).





