September weather forecastCrystal, ND
September
Weather in September
September, the first month of the autumn in Crystal, is also an agreeable month, with an average temperature fluctuating between 69.3°F (20.7°C) and 50.9°F (10.5°C).Temperature
During Crystal's transition into September, the average high-temperature lessens, moving from a warm 79.5°F (26.4°C) in August to an agreeable 69.3°F (20.7°C). An average nighttime temperature of 50.9°F (10.5°C) is observed during September.Humidity
The average relative humidity in September in Crystal is 62%.Rainfall
In Crystal, North Dakota, in September, it is raining for 9.2 days, with typically 1.73" (44mm) of accumulated precipitation. In Crystal, during the entire year, the rain falls for 99.8 days and collects up to 16.46" (418mm) of precipitation.Snowfall
In Crystal, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 34min.On the first day of September, sunrise is at 6:49 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:10 pm CDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Crystal, ND
- Average high temperature in September: 69.3°F
The warmest month (with the highest average high temperature) is August (79.5°F).
The month with the lowest average high temperature is January (14.5°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (1°F).
Average pressure in September
Crystal, ND
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Crystal, ND
- Average wind speed in September: 9.9mph
The windiest month (with the highest average wind speed) is October (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (8.4mph).
Average humidity in September
Crystal, ND
- Average humidity in September: 62%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (60%).
Average rainfall in September
Crystal, ND
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in September
Crystal, ND
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is June (16.9 days).
The month with the least rainy days is February (2 days).
Average snowfall in September
Crystal, ND
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Crystal, ND
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Crystal, ND
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Crystal, ND
- Average sunshine days in September: 19 days
The month with the most sunshine days is August (19.9 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Crystal, ND
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in September
Crystal, ND
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Crystal, ND
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
