Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Hammond records a slight change with May's average high-temperatures adjusting to a moderate 57.2°F (14°C) from April's 52.2°F (11.2°C). A modest decline from daytime high temperatures is noticed in May, marking the average low at a frosty 48.2°F (9°C).Humidity
March through May, October and December, with an average relative humidity of 81%, are the least humid months.Rainfall
In May, the rain falls for 13.8 days. Throughout May, 1.85" (47mm) of precipitation is accumulated. In Hammond, during the entire year, the rain falls for 190.6 days and collects up to 40.75" (1035mm) of precipitation.Snowfall
April through October and December are months without snowfall.Daylight
In Hammond, the average length of the day in May is 15h and 0min.On the first day of the month, sunrise is at 6:00 am and sunset at 8:24 pm. On the last day of May, sunrise is at 5:27 am and sunset at 8:59 pm PDT.
Sunshine
In May, the average sunshine is 8.4h.UV index
The months with the highest UV index in Hammond, Oregon, are May through October, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 4 during May, leads to the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What are the least humid months?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
How many hours of daylight does Hammond have in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
What are the months with the highest UV index?
What is the UV index intensity in May?
Average temperature in May
Hammond, OR
- Average high temperature in May: 57.2°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 May: 48.2°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 May
Hammond, OR
- Average pressure in May: 30.06"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 May
Hammond, OR
- Average wind speed in May: 8mph
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 May
Hammond, OR
- Average humidity in May: 81%
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 May
Hammond, OR
- Average rainfall in May: 1.85"
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 May
Hammond, OR
- Average rainfall days in May: 13.8 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 May
Hammond, OR
- Average snowfall in May: 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 May
Hammond, OR
- Average snowfall days in May: 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 May /
Average sunshine in May
Hammond, OR
- Average daylight in May: 15h and 0min
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 May: 8h and 2min
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 May
Hammond, OR
- Average sunshine days in May: 15.1 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 May
Hammond, OR
- Average UV index in May: 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 May
Hammond, OR
- Average cloud cover in May: 48
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 May
Hammond, OR
- Average visibility in May: 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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