Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
The transition from September to October brings a clear temperature drop, with average high-temperatures decreasing from a pleasant 68.5°F (20.3°C) to a cool 54°F (12.2°C). Throughout October, Chatham registers a consistent average low-temperature of 38.7°F (3.7°C).Humidity
In October, the average relative humidity in Chatham, New Hampshire, is 81%.Rainfall
The months with the most rainfall are April and October, with an average 2.17" (55mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. October is the first month it typically snows in Chatham, New Hampshire. Throughout October, in the average 0.6 snowfall days, it receives 0.2" (5mm) of snow. Throughout the year, there are 64.6 snowfall days, and 25.31" (643mm) of snow is accumulated.Daylight
In Chatham, the average length of the day in October is 10h and 59min.On the first day of October, sunrise is at 6:42 am and sunset at 6:24 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:34 pm EDT.
Sunshine
The average sunshine in October in Chatham is 5.9h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In October, a daily UV index of 2 turns into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What is the average October temperature in Chatham?
What is the average humidity in October in Chatham?
What is the rainiest month in Chatham?
How much does it rain in Chatham in October?
When does it start to snow in Chatham?
How many hours of daylight does Chatham have in October?
When are sunrise and sunset in October in Chatham?
How many hours of sunshine does Chatham have in October?
What is the month with the lowest UV index in Chatham?
How high is the UV index in October in Chatham?
Average temperature in October
Chatham, NH
- Average high temperature in October: 54°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (24.4°F).
- Average low temperature in October: 38.7°F
The month with the highest average low temperature is July (55.8°F).
The coldest month (with the lowest average low temperature) is January (10.4°F).
Average pressure in October
Chatham, NH
- Average pressure in October: 30"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Chatham, NH
- Average wind speed in October: 5.8mph
The windiest month (with the highest average wind speed) is January (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in October
Chatham, NH
- Average humidity in October: 81%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are May and November (77%).
Average rainfall in October
Chatham, NH
- Average rainfall in October: 2.17"
The wettest months (with the highest rainfall) are April and October (2.17").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in October
Chatham, NH
- Average rainfall days in October: 13.5 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is February (9.8 days).
Average snowfall in October
Chatham, NH
- Average snowfall in October: 0.2"
The month with the highest snowfall is February (6.73").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Chatham, NH
- Average snowfall days in October: 0.6 days
The months with the highest number of snowfall days are January and February (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Chatham, NH
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in October: 5h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in October
Chatham, NH
- Average sunshine days in October: 14 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is April (10.1 days).
Average UV index in October
Chatham, NH
- Average UV index in October: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in October
Chatham, NH
- Average cloud cover in October: 48
The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are August and September (Cloud cover 37).
Average visibility in October
Chatham, NH
- Average visibility in October: 5mi
The months with the highest visibility are April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February, March and September (4mi).
Chatham, New Hampshire, USA
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