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
Arrival of October comes with a reduction in the average high-temperature, falling from an agreeable 68.9°F (20.5°C) in September to a moderate 55.9°F (13.3°C). Grantham experiences an average nighttime temperature of 40.6°F (4.8°C) in the month of October.Humidity
In Grantham, the average relative humidity in October is 80%.Rainfall
The month with the most rainfall is October, when the rain falls for 14 days and typically aggregates up to 3.39" (86mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 1.3 snowfall days, it receives 0.43" (11mm) of snow. In Grantham, during the entire year, snow falls for 65.4 days and aggregates up to 42.72" (1085mm) of snow.Daylight
The average length of the day in October is 11h and 1min.On the first day of October, sunrise is at 6:46 am and sunset at 6:29 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:40 pm EDT.
Sunshine
In October, the average sunshine is 5.4h.UV index
The average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 in October interprets into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October?
What is the average humidity in October?
What is the wettest month?
How many days does it rain in October?
When does it start to snow?
What is the average length of the day in October?
When are sunrise and sunset in October?
How long on average sun shines in October?
What is the UV index reading 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
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