Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September implies a soft temperature shift, with average high-temperatures reducing from August's warm 77.4°F (25.2°C) to an agreeable 71.8°F (22.1°C). During September, the nighttime temperature averages to a fresh 52.9°F (11.6°C).Humidity
In September, the average relative humidity in North Washington is 79%.Rainfall
In North Washington, during September, the rain falls for 8.3 days and regularly aggregates up to 0.87" (22mm) of precipitation. In North Washington, during the entire year, the rain falls for 98 days and collects up to 9.8" (249mm) of precipitation.Snowfall
June through September are months without snowfall in North Washington.Daylight
The average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:34 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:52 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
The average daily maximum UV index in September in North Washington is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 translates into these guidelines:
Prioritize safety - Recommendations to avert sunburn are shared. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
What is the average September temperature in North Washington?
What is the average humidity in September in North Washington?
How much does it rain in North Washington in September?
When it does not snow in North Washington?
Does it snow in North Washington in September?
How many hours of daylight does North Washington have in September?
When are sunrise and sunset in September in North Washington?
How many hours of sunshine does North Washington have in September?
What is the UV index intensity in September in North Washington?
Average temperature in September
North Washington, IA
- Average high temperature in September: 71.8°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in September: 52.9°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 (10.6°F).
Average pressure in September
North Washington, IA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
North Washington, IA
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).
Average humidity in September
North Washington, IA
- Average humidity in September: 79%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
North Washington, IA
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days in September
North Washington, IA
- Average rainfall days in September: 8.3 days
The month with the highest number of rainy days is June (14.5 days).
The month with the least rainy days is February (2 days).
Average snowfall in September
North Washington, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
North Washington, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
North Washington, IA
- Average daylight in September: 12h and 3min
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 6min).
- Average sunshine in September: 9h and 0min
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 September
North Washington, IA
- Average sunshine days in September: 19.4 days
The month with the most sunshine days is November (22 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in September
North Washington, IA
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
North Washington, IA
- Average cloud cover in September: 33
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 September
North Washington, IA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
North Washington, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location
