Expand
Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Helvetia, West Virginia, with temperature in the range of an average high of 35.4°F (1.9°C) and an average low of 22.5°F (-5.3°C). Helvetia reaches its lowest average temperatures in January, measuring 35.4°F (1.9°C) at the peak and 22.5°F (-5.3°C) at the lowest. Weather in January »
Weather in February
February, the last month of the winter in Helvetia, is another cold month, with an average temperature varying between 40.1°F (4.5°C) and 26.1°F (-3.3°C). Helvetia in February witnesses an average high-temperature of a still icy 40.1°F (4.5°C), indicating a slight variation from January's 35.4°F (1.9°C). Weather in February »
Weather in March
March, the first month of the spring in Helvetia, is a chilly month, with temperature in the range of an average high of 49.3°F (9.6°C) and an average low of 33.1°F (0.6°C). Helvetia, West Virginia, in March sees a temperature change, with average high-temperatures moving from an icy 40.1°F (4.5°C) in February to a frosty 49.3°F (9.6°C). Weather in March »
Weather in April
April is a refreshing spring month in Helvetia, West Virginia, with an average temperature varying between 60.8°F (16°C) and 41.7°F (5.4°C). April sees a temperature increase, moving from a frosty 49.3°F (9.6°C) in March to a comfortable 60.8°F (16°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Helvetia, West Virginia, with an average temperature ranging between min 51.4°F (10.8°C) and max 71.4°F (21.9°C). An escalation in the average high-temperature is seen with the onset of May, moving from a refreshing 60.8°F (16°C) in April to an agreeable 71.4°F (21.9°C). Weather in May »
Weather in June
June, the first month of the summer in Helvetia, is a moderately hot month, with an average temperature fluctuating between 57°F (13.9°C) and 78.1°F (25.6°C). With the beginning of June, Helvetia's average high-temperature sees a minor increase, transitioning from a pleasant 71.4°F (21.9°C) in May to a warm 78.1°F (25.6°C). Weather in June »
Weather in July
July, like June, in Helvetia, West Virginia, is another warm summer month, with an average temperature ranging between max 82°F (27.8°C) and min 60.1°F (15.6°C). Helvetia's warmest month, July, registers temperatures that range from a high of 82°F (27.8°C) to a low of 60.1°F (15.6°C). The heat index value during July is evaluated at a tropical 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Helvetia, West Virginia, with an average temperature ranging between min 58.5°F (14.7°C) and max 80.8°F (27.1°C). During August, Helvetia observes a subtle ascent to a still moderately hot 80.8°F (27.1°C) from July's 82°F (27.8°C) in the average high-temperature. Weather in August »
Weather in September
September, the first month of the autumn in Helvetia, is also a moderately hot month, with an average temperature ranging between max 75.2°F (24°C) and min 54.3°F (12.4°C). With the arrival of September, Helvetia notices a mild change in the average high-temperature, sliding from August's 80.8°F (27.1°C) to a still moderately hot 75.2°F (24°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Helvetia, West Virginia, with an average temperature fluctuating between 44.6°F (7°C) and 62.6°F (17°C). The beginning of October marks a decrease in the average high-temperature, transitioning from a moderately hot 75.2°F (24°C) in September to an enjoyable 62.6°F (17°C). Weather in October »
Weather in November
November, the last month of the autumn in Helvetia, is also a fresh month, with an average temperature fluctuating between 34.7°F (1.5°C) and 50.2°F (10.1°C). With November's arrival, Helvetia sees a decrease in average high-temperatures, moving from an enjoyable 62.6°F (17°C) in October to a fresh 50.2°F (10.1°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Helvetia, West Virginia, with temperature in the range of an average low of 29.5°F (-1.4°C) and an average high of 41.7°F (5.4°C). A moderate decline in average high-temperatures is noted in December, moving from a fresh 50.2°F (10.1°C) in November to an icy 41.7°F (5.4°C). Weather in December »
Updated: Aug 2, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Helvetia?
January is Helvetia's coldest month, registering average high temperatures of 35.4°F (1.9°C) and lows of 22.5°F (-5.3°C).
What is the most humid month?
The months with the highest humidity are January and February, with an average relative humidity of 84%.
How many days does it rain?
In Helvetia, during the entire year, the rain falls for 187.8 days and collects up to 38.07" (967mm) of precipitation.
When does it snow?
Months with snowfall are January through May, October through December.
What is the snowiest month in Helvetia?
January is the month with the most snowfall. Snow falls for 17.2 days and accumulates 9.02" (229mm) of snow.
How much does it snow?
Throughout the year, there are 62.1 snowfall days, and 37.83" (961mm) of snow is accumulated.
What is the month with the least sunshine in Helvetia?
The month with the least sunshine is January, with an average of 3.5h of sunshine.
What are the months with the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the wettest month?
May is the month with the most rainfall. Rain falls for 21.3 days and accumulates 4.33" (110mm) of precipitation.
What are the least humid months?
June through August and November, with an average relative humidity of 77%, are the least humid months.
When it does not snow?
In Helvetia, snow does not fall in June through September.
When are the longest days?
The month with the longest days is June, with an average of 14h and 48min of daylight.
What are the warmest months in Helvetia?
July, marked by an average high-temperature of 82°F (27.8°C) and a low-temperature of 60.1°F (15.6°C), is the warmest month.
When is the highest UV index?
With an average maximum UV index of 6, July is the month with the highest UV index.
What month has the most sunshine?
With an average of 10.1h of sunshine, August has the most sunshine of the year.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 14.4 days and typically collects 1.89" (48mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 30min of daylight.
Average temperature
Helvetia, WV
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (35.4°F).
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure
Helvetia, WV
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
29.99"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed
Helvetia, WV
- Average wind speed in January:
7.3mph - Average wind speed in February:
7.4mph - Average wind speed in March:
6.6mph - Average wind speed in April:
6.8mph - Average wind speed in May:
5.8mph - Average wind speed in June:
5.3mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.3mph - Average wind speed in September:
4.5mph - Average wind speed in October:
5.4mph - Average wind speed in November:
5.9mph - Average wind speed in December:
6.7mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity
Helvetia, WV
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are June, July, August and November (77%).
Average rainfall
Helvetia, WV
- Average rainfall in January:
3.19" - Average rainfall in February:
3.58" - Average rainfall in March:
3.39" - Average rainfall in April:
3.58" - Average rainfall in May:
4.33" - Average rainfall in June:
3.27"
- Average rainfall in July:
3.5" - Average rainfall in August:
2.44" - Average rainfall in September:
1.89" - Average rainfall in October:
3.11" - Average rainfall in November:
2.32" - Average rainfall in December:
3.46"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days
Helvetia, WV
- Average rainfall days in January:
11.8 days - Average rainfall days in February:
11.4 days - Average rainfall days in March:
16.4 days - Average rainfall days in April:
18.1 days - Average rainfall days in May:
21.3 days - Average rainfall days in June:
17.8 days
- Average rainfall days in July:
19.3 days - Average rainfall days in August:
15.7 days - Average rainfall days in September:
14.4 days - Average rainfall days in October:
15.2 days - Average rainfall days in November:
12.9 days - Average rainfall days in December:
13.5 days
The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is February (11.4 days).
Average snowfall
Helvetia, WV
- Average snowfall in January:
9.02" - Average snowfall in February:
8.46" - Average snowfall in March:
5.94" - Average snowfall in April:
1.85" - Average snowfall in May:
0.75" - Average snowfall in June:
0"
The month with the highest snowfall is January (9.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Helvetia, WV
- Average snowfall days in January:
17.2 days - Average snowfall days in February:
13.8 days - Average snowfall days in March:
8.6 days - Average snowfall days in April:
2.4 days - Average snowfall days in May:
0.3 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
1.1 days - Average snowfall days in November:
6.2 days - Average snowfall days in December:
12.5 days
The month with the highest number of snowfall days is January (17.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Helvetia, WV
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
3h and 3min - Average sunshine in February:
4h and 1min - Average sunshine in March:
5h and 4min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 2min - Average sunshine in December:
3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days
Helvetia, WV
- Average sunshine days in January:
7.3 days - Average sunshine days in February:
7.2 days - Average sunshine days in March:
8.2 days - Average sunshine days in April:
9.5 days - Average sunshine days in May:
7.7 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
9.6 days - Average sunshine days in August:
12.8 days - Average sunshine days in September:
12.9 days - Average sunshine days in October:
13.1 days - Average sunshine days in November:
13.2 days - Average sunshine days in December:
9.4 days
The month with the most sunshine days is November (13.2 days).
The month with the least sunshine days is February (7.2 days).
Average UV index
Helvetia, WV
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Helvetia, WV
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility
Helvetia, WV
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is January (4mi).