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
October brings a minor decrease, with the average high-temperature reducing from an agreeable 68.9°F (20.5°C) in September to a refreshing 55.9°F (13.3°C). Throughout the month of October, Grantham reports a steady low-temperature average of 40.6°F (4.8°C).Humidity
The average relative humidity in October is 80%.Rainfall
October is the month with the most rainfall. Rain falls for 14 days and accumulates 3.39" (86mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. October is the first month it typically snows in Grantham. Throughout October, in the average 1.3 snowfall days, it receives 0.43" (11mm) of snow. Throughout the year, there are 65.4 snowfall days, and 42.72" (1085mm) of snow is accumulated.Daylight
In Grantham, the average length of the day in October is 11h and 1min.On the first day of the month, sunrise is at 6:46 am and sunset at 6:29 pm. On the last day of October, in Grantham, New Hampshire, sunrise is at 7:23 am and sunset at 5:40 pm EDT.
Sunshine
In Grantham, the average sunshine in October is 5.4h.UV index
In October, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: In October, the maximum UV index of 2 translates into these guidelines:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
What are October temperatures in Grantham?
What is the average humidity in October in Grantham?
What is the wettest month in Grantham?
How many days does it rain in October in Grantham?
When does it start snowing in Grantham?
How many hours of daylight does Grantham have in October?
What time are sunrise and sunset in October in Grantham?
How long on average sun shines in October in Grantham?
What is the UV index intensity in October in Grantham?
Average temperature in October
Grantham, NH
- Average high temperature in October: 55.9°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (25.9°F).
- Average low temperature in October: 40.6°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in October
Grantham, NH
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Grantham, NH
- Average wind speed in October: 6.3mph
The windiest months (with the highest average wind speed) are January, February, March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in October
Grantham, NH
- Average humidity in October: 80%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (75%).
Average rainfall in October
Grantham, NH
- Average rainfall in October: 3.39"
The wettest month (with the highest rainfall) is October (3.39").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in October
Grantham, NH
- Average rainfall days in October: 14 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in October
Grantham, NH
- Average snowfall in October: 0.43"
The month with the highest snowfall is February (11.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Grantham, NH
- Average snowfall days in October: 1.3 days
The month with the highest number of snowfall days is February (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Grantham, NH
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in October: 5h and 2min
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 0min).
Average sunshine days in October
Grantham, NH
- Average sunshine days in October: 13.5 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is February (11.3 days).
Average UV index in October
Grantham, NH
- Average UV index in October: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in October
Grantham, NH
- Average cloud cover in October: 50
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in October
Grantham, NH
- Average visibility in October: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Grantham, New Hampshire, USA
Weather forecast for your location
2. Allow the app to use your location
