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 beginning of October signals a clear reduction in the average high-temperature, falling from a warm 75°F (23.9°C) in September to a mild 60.4°F (15.8°C). Griswold encounters a steady low-temperature average of 43.7°F (6.5°C) throughout the month of October.Humidity
The least humid month is October, with an average relative humidity of 69%.Rainfall
In Griswold, in October, during 8.6 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, in Griswold, there are 118.7 rainfall days, and 20.79" (528mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. 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 the month, sunrise is at 7:18 am and sunset at 7:01 pm. On the last day of October, sunrise is at 7:51 am and sunset at 6:16 pm CDT.
Sunshine
The average sunshine in October is 5.8h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Griswold, Iowa. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 2 in October interprets into the following advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
What are the temperatures in Griswold in October?
What is the least humid month in Griswold?
What is the average humidity in October in Griswold?
How many days does it rain in October in Griswold?
When does it start snowing in Griswold?
How many hours of daylight does Griswold have in October?
What time are sunrise and sunset in October in Griswold?
How long on average sun shines in October in Griswold?
What are the months with the lowest UV index in Griswold?
What is the UV index reading in October in Griswold?
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 1min
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 5min
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).
Griswold, Iowa, USA
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