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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
Weather in January
January, the same as December, is an icy winter month in Rio Vista, Maryland, with an average temperature fluctuating between 40.5°F (4.7°C) and 30°F (-1.1°C). Rio Vista experiences its lowest temperatures in January, with an average peak of 40.5°F (4.7°C) and a low of 30°F (-1.1°C). Weather in January »
Weather in February
February, the last month of the winter in Rio Vista, is a frosty month, with an average temperature varying between 32°F (0°C) and 43.9°F (6.6°C). Welcoming February, Rio Vista notes an average high-temperature of a frosty 43.9°F (6.6°C), nearly consistent with January's 40.5°F (4.7°C). Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Rio Vista, Maryland, with an average temperature fluctuating between 50.5°F (10.3°C) and 38.5°F (3.6°C). The onset of March brings a minor temperature shift, with the average high-temperature moving from a chilly 43.9°F (6.6°C) in February to a cool 50.5°F (10.3°C). Weather in March »
Weather in April
April is a refreshing spring month in Rio Vista, Maryland, with temperature in the range of an average high of 62.1°F (16.7°C) and an average low of 48.2°F (9°C). An upsurge in temperatures occurs as March gives way to April, with average highs shifting from a cool 50.5°F (10.3°C) to an enjoyable 62.1°F (16.7°C). Weather in April »
Weather in May
May, the last month of the spring in Rio Vista, is an agreeable month, with an average temperature ranging between min 57.9°F (14.4°C) and max 70.7°F (21.5°C). As May arrives, a slight rise in the average high-temperature is observed, moving from a comfortable 62.1°F (16.7°C) in April to a pleasant 70.7°F (21.5°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Rio Vista, Maryland, with temperature in the range of an average high of 79°F (26.1°C) and an average low of 66.6°F (19.2°C). A gentle upsurge in temperatures occurs as May gives way to June, with average highs shifting from an agreeable 70.7°F (21.5°C) to a warm 79°F (26.1°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Rio Vista, Maryland, with an average temperature varying between 84.4°F (29.1°C) and 71.8°F (22.1°C). July is the month that records the highest temperatures, with averages ranging from a high of 84.4°F (29.1°C) to a low of 71.8°F (22.1°C). The heat index value for July is computed to be a tropical 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Rio Vista, is also a moderately hot month, with an average temperature ranging between min 70.3°F (21.3°C) and max 82.9°F (28.3°C). August's arrival brings an average high-temperature of a still warm 82.9°F (28.3°C), demonstrating subtle variation from the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Rio Vista, Maryland, with an average temperature fluctuating between 76.8°F (24.9°C) and 64°F (17.8°C). In Rio Vista, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's 82.9°F (28.3°C) to a still warm 76.8°F (24.9°C). Weather in September »
Weather in October
October, like September, in Rio Vista, Maryland, is another refreshing autumn month, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 66.2°F (19°C). In Rio Vista, the beginning of October is marked by a lowered average high-temperature, shifting from September's moderately hot 76.8°F (24.9°C) to a refreshing 66.2°F (19°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Rio Vista, Maryland, with an average temperature fluctuating between 43°F (6.1°C) and 54.5°F (12.5°C). Transition into November marks a drop in the average high-temperature, moving from a refreshing 66.2°F (19°C) in October to a fresh 54.5°F (12.5°C). Weather in November »
Weather in December
December, the first month of the winter in Rio Vista, is still a chilly month, with an average temperature ranging between min 36.5°F (2.5°C) and max 46.2°F (7.9°C). Start of December brings a slight shift in the average high-temperature, dipping a bit from November's fresh 54.5°F (12.5°C) to a frosty 46.2°F (7.9°C). Weather in December »
Updated: Aug 21, 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 are the coldest months?
With its average high temperature of 40.5°F (4.7°C) and a low of 30°F (-1.1°C), January is regarded as the coldest month.
What is the least humid month?
The months with the lowest humidity are January and November, with an average relative humidity of 73%.
What is the driest month?
The month with the least rainfall is January, when the rain falls for 8.8 days and typically collects 1.93" (49mm) of precipitation.
How many days does it rain?
In Rio Vista, Maryland, during the entire year, the rain falls for 157 days and collects up to 32.91" (836mm) of precipitation.
When does it snow?
Months with snowfall are January through April, November and December.
How much does it snow?
In Rio Vista, during the entire year, snow falls for 9.8 days and aggregates up to 3.82" (97mm) of snow.
What are the months with the lowest UV index?
January and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the month with the least sunshine?
With an average of 5.2h of sunshine, February has the least sunshine of the year.
When does it snow the most?
March is the month with the most snowfall in Rio Vista. Snow falls for 1.9 days and accumulates 1.22" (31mm) of snow.
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 most humid month in Rio Vista?
With an average relative humidity of 79%, May is the most humid month.
When it does not snow?
In Rio Vista, Maryland, snow does not fall in May through October.
What are the months with the highest UV index?
The months with the highest UV index in Rio Vista are May through August, with an average maximum UV index of 6.
When are the longest days?
The month with the longest days is June, with an average of 14h and 48min of daylight.
What part of the year is the hottest?
Temperature readings reach their annual highs in July, averaging 84.4°F (29.1°C) and a minimum average of 71.8°F (22.1°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.9h of sunshine.
What is the wettest month?
August is the month with the most rainfall. Rain falls for 17 days and accumulates 4.17" (106mm) of precipitation.
What is the month with the shortest days in Rio Vista?
December has the shortest days of the year, with an average of 9h and 30min of daylight.
Average temperature
Rio Vista, MD
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (40.5°F).
The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure
Rio Vista, MD
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
30"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Rio Vista, MD
- Average wind speed in January:
10mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10.1mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.7mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.5mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.2mph
The windiest months (with the highest average wind speed) are February and March (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Rio Vista, MD
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (73%).
Average rainfall
Rio Vista, MD
- Average rainfall in January:
1.93" - Average rainfall in February:
2.2" - Average rainfall in March:
2.24" - Average rainfall in April:
2.28" - Average rainfall in May:
2.64" - Average rainfall in June:
3.03"
- Average rainfall in July:
3.66" - Average rainfall in August:
4.17" - Average rainfall in September:
2.36" - Average rainfall in October:
3.23" - Average rainfall in November:
2.24" - Average rainfall in December:
2.91"
The wettest month (with the highest rainfall) is August (4.17").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days
Rio Vista, MD
- Average rainfall days in January:
8.8 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
13.2 days - Average rainfall days in April:
13 days - Average rainfall days in May:
17.2 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
17 days - Average rainfall days in September:
14.3 days - Average rainfall days in October:
12.7 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
11.1 days
The month with the highest number of rainy days is May (17.2 days).
The months with the least rainy days are January and November (8.8 days).
Average snowfall
Rio Vista, MD
The month with the highest snowfall is March (1.22").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Rio Vista, MD
- Average snowfall days in January:
3.2 days - Average snowfall days in February:
2.7 days - Average snowfall days in March:
1.9 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0 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:
0 days - Average snowfall days in November:
0.3 days - Average snowfall days in December:
1.6 days
The month with the highest number of snowfall days is January (3.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Rio Vista, MD
- 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:
5h and 2min - Average sunshine in February:
5h and 1min - Average sunshine in March:
7h and 0min - Average sunshine in April:
9h and 1min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 4min - Average sunshine in September:
9h and 3min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days
Rio Vista, MD
- Average sunshine days in January:
18.2 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
15.8 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
13.8 days
- Average sunshine days in July:
12.4 days - Average sunshine days in August:
11.8 days - Average sunshine days in September:
13.8 days - Average sunshine days in October:
16.2 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
17.7 days
The month with the most sunshine days is November (19.7 days).
The months with the least sunshine days are May and August (11.8 days).
Average UV index
Rio Vista, MD
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover
Rio Vista, MD
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility
Rio Vista, MD
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).
Rio Vista, Maryland, USA
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