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
In Crystal Lake, the onset of October is marked by a decreased average high-temperature, declining from September's agreeable 72.1°F (22.3°C) to a moderate 56.7°F (13.7°C). October brings an average low-temperature of 42.3°F (5.7°C) to Crystal Lake.Humidity
The least humid month in Crystal Lake is October, with an average relative humidity of 70%.Rainfall
In Crystal Lake, in October, it is raining for 10.5 days, with typically 1.97" (50mm) of accumulated precipitation. In Crystal Lake, during the entire year, the rain falls for 136.2 days and collects up to 25.39" (645mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. October is the first month it typically snows in Crystal Lake, Iowa. Throughout October, in the average 2 snowfall days, it receives 0.31" (8mm) of snow. In Crystal Lake, during the entire year, snow falls for 55.1 days and aggregates up to 22.05" (560mm) of snow.Daylight
In October, the average length of the day is 11h and 1min.On the first day of the month, sunrise is at 7:13 am and sunset at 6:55 pm. On the last day of October, sunrise is at 7:49 am and sunset at 6:07 pm CDT.
Sunshine
In October, the average sunshine in Crystal Lake is 5.4h.UV index
In Crystal Lake, the average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: During October, 2 as the daily maximum UV index converts into the following advice:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Frequently asked questions
What are October temperatures in Crystal Lake?
What is the least humid month in Crystal Lake?
What is the average humidity in October in Crystal Lake?
How many days does it rain in October in Crystal Lake?
When does it start to snow in Crystal Lake?
How many hours of daylight does Crystal Lake have in October?
When is the sunrise / sunset in October in Crystal Lake?
How many hours of sunshine does Crystal Lake have in October?
How high is the UV index in October in Crystal Lake?
Average temperature in October
Crystal Lake, IA
- Average high temperature in October: 56.7°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.1°F).
- Average low temperature in October: 42.3°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in October
Crystal Lake, IA
- Average pressure in October: 29.99"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in October
Crystal Lake, IA
- Average wind speed in October: 10.1mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in October
Crystal Lake, IA
- Average humidity in October: 70%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (70%).
Average rainfall in October
Crystal Lake, IA
- Average rainfall in October: 1.97"
The wettest month (with the highest rainfall) is June (4.21").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in October
Crystal Lake, IA
- Average rainfall days in October: 10.5 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (3 days).
Average snowfall in October
Crystal Lake, IA
- Average snowfall in October: 0.31"
The month with the highest snowfall is February (5.79").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Crystal Lake, IA
- Average snowfall days in October: 2 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Crystal Lake, IA
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
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 July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in October
Crystal Lake, IA
- Average sunshine days in October: 17.4 days
The months with the most sunshine days are October and November (17.4 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in October
Crystal Lake, IA
- Average UV index in October: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in October
Crystal Lake, IA
- Average cloud cover in October: 39
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in October
Crystal Lake, IA
- Average visibility in October: 6mi
The months with the highest visibility are March, April, May, June, September, October and November (6mi).
The months with the lowest visibility are January, February, July, August and December (5mi).
Crystal Lake, Iowa, USA
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