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 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
The onset of May brings a minor temperature shift, with the average high-temperature moving from a moderately hot 73.9°F (23.3°C) in April to a still warm 82°F (27.8°C). During the nights in May, Helm records a pronounced shift from the daytime warmth, with a consistent average temperature of 56.7°F (13.7°C).Heat index
For May, the heat index is evaluated at 82.4°F (28°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.Heat index evaluations are typically in the context of light winds and shaded environments. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
The average relative humidity in May is 42%.Rainfall
In Helm, in May, it is raining for 2.7 days, with typically 0.16" (4mm) of accumulated precipitation. In Helm, during the entire year, the rain falls for 37.2 days and collects up to 2.48" (63mm) of precipitation.Daylight
In Helm, the average length of the day in May is 14h and 8min.On the first day of the month, sunrise is at 6:05 am and sunset at 7:49 pm. On the last day of May, sunrise is at 5:43 am and sunset at 8:12 pm PDT.
Sunshine
In Helm, the average sunshine in May is 11.5h.UV index
In Helm, California, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 6 in May translates into these instructions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Helm in May?
What is the average humidity in May?
How many days does it rain in May?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
Helm, CA
- Average high temperature in May: 82°F
The warmest month (with the highest average high temperature) is July (100.9°F).
The month with the lowest average high temperature is December (56.5°F).
- Average low temperature in May: 56.7°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is December (42.6°F).
Average pressure in May
Helm, CA
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Helm, CA
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is June (7.6mph).
The calmest month (with the lowest average wind speed) is January (5.1mph).
Average humidity in May
Helm, CA
- Average humidity in May: 42%
The months with the highest relative humidity are January and December (66%).
The month with the lowest relative humidity is July (30%).
Average rainfall in May
Helm, CA
- Average rainfall in May: 0.16"
The wettest months (with the highest rainfall) are February and March (0.43").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days in May
Helm, CA
- Average rainfall days in May: 2.7 days
The month with the highest number of rainy days is March (7 days).
The months with the least rainy days are August and September (0.5 days).
Average daylight in May /
Average sunshine in May
Helm, CA
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in May: 11h and 3min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The months with the least sunshine are February and December (Average sunshine: 6h and 24min).
Average sunshine days in May
Helm, CA
- Average sunshine days in May: 27.5 days
The month with the most sunshine days is August (29.7 days).
The month with the least sunshine days is February (22 days).
Average UV index in May
Helm, CA
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in May
Helm, CA
- Average cloud cover in May: 15
The month with the most cloud cover is March (Cloud cover 29).
The months with the least cloud cover are July and August (Cloud cover 4).
Average visibility in May
Helm, CA
- 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).
Helm, California, USA
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