October weather forecastGriswold, IA
October
Weather in October
October, like September, is a moderate autumn month in Griswold, Iowa, with an average temperature varying between 43.7°F (6.5°C) and 60.4°F (15.8°C).Temperature
A distinct shift in the average high-temperature is signaled in October, moving down from a moderately hot 75°F (23.9°C) in September to a mild 60.4°F (15.8°C). The nighttime temperature, during October, averages of 43.7°F (6.5°C).Humidity
The least humid month is October, with an average relative humidity of 69%.Rainfall
In Griswold, during October, the rain falls for 8.6 days and regularly aggregates up to 1.42" (36mm) of precipitation. Throughout the year, there are 118.7 rainfall days, and 20.79" (528mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. October is the first month it typically snows in Griswold. Throughout October, in the average 0.5 snowfall days, it receives 0.35" (9mm) of snow. In Griswold, during the entire year, snow falls for 32.3 days and aggregates up to 9.41" (239mm) of snow.Daylight
In October, the average length of the day is 11h and 5min.On the first day of October, sunrise is at 7:18 am and sunset at 7:01 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 6:16 pm CDT.
Sunshine
In Griswold, Iowa, the average sunshine in October is 5.8h.UV index
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In October, the UV index of 2 transforms into the following advice:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Griswold, IA
- Average high temperature in October: 60.4°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in October: 43.7°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in October
Griswold, IA
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in October
Griswold, IA
- Average wind speed in October: 9.6mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in October
Griswold, IA
- Average humidity in October: 69%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (69%).
Average rainfall in October
Griswold, IA
- Average rainfall in October: 1.42"
The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in October
Griswold, IA
- Average rainfall days in October: 8.6 days
The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in October
Griswold, IA
- Average snowfall in October: 0.35"
The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Griswold, IA
- Average snowfall days in October: 0.5 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Griswold, IA
- Average daylight in October: 11h and 6min
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 October: 5h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in October
Griswold, IA
- Average sunshine days in October: 20.7 days
The month with the most sunshine days is December (21.2 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in October
Griswold, IA
- Average UV index in October: 2
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, October, November and December (UV index 2).
Average cloud cover in October
Griswold, IA
- Average cloud cover in October: 35
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in October
Griswold, IA
- Average visibility in October: 6mi
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).
