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
The commencement of September introduces an average high-temperature of a still comfortable 63.3°F (17.4°C), closely mirroring the preceding month. In Hammond, the nighttime temperature shows a slight difference from the daytime high, averaging to a cool 54.7°F (12.6°C) during September.Humidity
The average relative humidity in September is 83%.Rainfall
In Hammond, during September, the rain falls for 11.3 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, there are 190.6 rainfall days, and 40.75" (1035mm) of precipitation is accumulated.Snowfall
In Hammond, snow does not fall in April through October and December.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:14 am and sunset at 6:56 pm PDT.
Sunshine
In Hammond, Oregon, the average sunshine in September is 8.8h.UV index
May through October, with an average maximum UV index of 4, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. It's recommended to limit sun exposure when its radiation is at its peak during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Hammond have in September?
When is the highest UV index in Hammond?
What is the UV index reading in September?
Average temperature in September
Hammond, OR
- Average high temperature in September: 63.3°F
The warmest month (with the highest average high temperature) is August (64.6°F).
The month with the lowest average high temperature is December (46.4°F).
- Average low temperature in September: 54.7°F
The month with the highest average low temperature is August (55.6°F).
The coldest months (with the lowest average low temperature) are January and December (41°F).
Average pressure in September
Hammond, OR
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is July (30.08"Hg).
The months with the lowest atmospheric pressure are March and September (30.02"Hg).
Average wind speed in September
Hammond, OR
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Hammond, OR
- Average humidity in September: 83%
The month with the highest relative humidity is August (85%).
The months with the lowest relative humidity are March, April, May, October and December (81%).
Average rainfall in September
Hammond, OR
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is December (6.61").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in September
Hammond, OR
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is December (21.2 days).
The month with the least rainy days is August (7.3 days).
Average snowfall in September
Hammond, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Hammond, OR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Hammond, OR
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).
Average sunshine days in September
Hammond, OR
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is August (20.5 days).
The month with the least sunshine days is February (7.1 days).
Average UV index in September
Hammond, OR
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August, September and October (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Hammond, OR
- Average cloud cover in September: 36
The months with the most cloud cover are January and February (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 36).
Average visibility in September
Hammond, OR
- Average visibility in September: 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).
Hammond, Oregon, USA
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