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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 another cold winter month in Riva, Maryland, with an average temperature ranging between max 40.3°F (4.6°C) and min 29.8°F (-1.2°C). January, characterized by an average high temperature of 40.3°F (4.6°C) and a low temperature of 29.8°F (-1.2°C), is generally the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is a frosty month in Riva, Maryland, with an average temperature fluctuating between 43°F (6.1°C) and 32°F (0°C). The arrival of February brings an average high-temperature of a chilly 43°F (6.1°C), closely following the temperature pattern of January. Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Riva, Maryland, with an average temperature varying between 38.5°F (3.6°C) and 50.5°F (10.3°C). Riva's weather in March shows a minor rise in the average high-temperature, moving slightly up from February's chilly 43°F (6.1°C) to a fresh 50.5°F (10.3°C). Weather in March »
Weather in April
April is a refreshing spring month in Riva, Maryland, with temperature in the range of an average high of 62.2°F (16.8°C) and an average low of 48.2°F (9°C). April's arrival coincides with a temperature rise, moving from March's cool 50.5°F (10.3°C) to a comfortable 62.2°F (16.8°C). Weather in April »
Weather in May
May, the last month of the spring in Riva, is a pleasant month, with an average temperature ranging between min 57.7°F (14.3°C) and max 71.2°F (21.8°C). As May sets, the average high-temperature shows an increase, moving up from a comfortable 62.2°F (16.8°C) in April to a pleasant 71.2°F (21.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Riva, Maryland, with an average temperature fluctuating between 79.3°F (26.3°C) and 66.7°F (19.3°C). Riva observes a slight ascent in average high-temperatures during June, adjusting from a pleasant 71.2°F (21.8°C) in May to a moderately hot 79.3°F (26.3°C). Weather in June »
Weather in July
July, like June, in Riva, Maryland, is a moderately hot summer month, with an average temperature varying between 84.7°F (29.3°C) and 72°F (22.2°C). July proves to be the warmest month, recording an average peak temperature of 84.7°F (29.3°C) and a minimum temperature of 72°F (22.2°C). In July, the average heat index 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 Riva, is also a moderately hot month, with temperature in the range of an average low of 70.5°F (21.4°C) and an average high of 83.3°F (28.5°C). Riva's weather, upon August's arrival, documents an average high-temperature of a still moderately hot 83.3°F (28.5°C), nearly identical to the prior month. Weather in August »
Weather in September
September, the first month of the autumn in Riva, is also a moderately hot month, with an average temperature ranging between min 64.6°F (18.1°C) and max 77°F (25°C). The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from 83.3°F (28.5°C) in August to a still warm 77°F (25°C). Weather in September »
Weather in October
October, like September, in Riva, Maryland, is another refreshing autumn month, with an average temperature fluctuating between 66.2°F (19°C) and 54.5°F (12.5°C). October's arrival coincides with a drop in the average high-temperature, decreasing from September's warm 77°F (25°C) to an enjoyable 66.2°F (19°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Riva, Maryland, with an average temperature fluctuating between 43.2°F (6.2°C) and 54.5°F (12.5°C). The move into November indicates a reduction in the average high-temperature, down from October's refreshing 66.2°F (19°C) to a fresh 54.5°F (12.5°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Riva, Maryland, with an average temperature fluctuating between 36.5°F (2.5°C) and 46°F (7.8°C). In December, the meteorological conditions change slightly, with the average high-temperature moving from a fresh 54.5°F (12.5°C) in November to a chilly 46°F (7.8°C). Weather in December »
Updated: Jul 28, 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?
Riva's January weather reaches an average high of 40.3°F (4.6°C) and an average low of 29.8°F (-1.2°C), making it the coldest month.
What are the least humid months?
January, March, April and November, with an average relative humidity of 72%, are the least humid months.
What is the driest month?
The month with the least rainfall is January, when the rain falls for 6 days and typically collects 0.47" (12mm) of precipitation.
How much does it rain in Riva?
Throughout the year, there are 120.4 rainfall days, and 10.47" (266mm) of precipitation is accumulated.
When does it snow?
January through March, November and December are months with snowfall.
When does it snow the most?
January is the month with the most snowfall. Snow falls for 2.3 days and accumulates 0.67" (17mm) of snow.
How much does it snow in Riva?
In Riva, during the entire year, snow falls for 8.3 days and aggregates up to 1.22" (31mm) of snow.
When is the lowest UV index?
January, February 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?
February has the least sunshine of the year, with an average of 5h of sunshine.
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.
When it does not snow?
April through October are months without snowfall.
What is the most humid month?
The most humid month is May, with an average relative humidity of 78%.
What are the months with the highest UV index?
The months with the highest UV index 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 54min of daylight.
What is the warmest month?
In Riva, July is the warmest month, with temperatures averaging a high of 84.7°F (29.3°C) and a low of 72°F (22.2°C).
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.8h of sunshine.
What is the wettest month in Riva?
August is the month with the most rainfall. Rain falls for 14.3 days and accumulates 1.69" (43mm) of precipitation.
What is the month with the shortest days in Riva?
The month with the shortest days is December, with an average of 9h and 30min of daylight.
Average temperature
Riva, MD
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.3°F).
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).
Average pressure
Riva, MD
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"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
Riva, MD
- Average wind speed in January:
10mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.9mph - Average wind speed in April:
9.7mph - Average wind speed in May:
8mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.3mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity
Riva, MD
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).
Average rainfall
Riva, MD
- Average rainfall in January:
0.47" - Average rainfall in February:
0.55" - Average rainfall in March:
0.67" - Average rainfall in April:
0.75" - Average rainfall in May:
0.87" - Average rainfall in June:
1.26"
- Average rainfall in July:
1.54" - Average rainfall in August:
1.69" - Average rainfall in September:
0.63" - Average rainfall in October:
0.87" - Average rainfall in November:
0.51" - Average rainfall in December:
0.67"
The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days
Riva, MD
- Average rainfall days in January:
6 days - Average rainfall days in February:
6.4 days - Average rainfall days in March:
9.5 days - Average rainfall days in April:
11.3 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
12.8 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
8.8 days - Average rainfall days in November:
5.3 days - Average rainfall days in December:
7.4 days
The months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).
Average snowfall
Riva, MD
The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Riva, MD
- Average snowfall days in January:
2.3 days - Average snowfall days in February:
2.5 days - Average snowfall days in March:
1.5 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:
0.4 days - Average snowfall days in December:
1.5 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Riva, 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 54min).
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 0min - Average sunshine in March:
6h and 5min - Average sunshine in April:
8h and 5min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 3min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days
Riva, MD
- Average sunshine days in January:
23 days - Average sunshine days in February:
19.2 days - Average sunshine days in March:
19.8 days - Average sunshine days in April:
17 days - Average sunshine days in May:
14.7 days - Average sunshine days in June:
14.8 days
- Average sunshine days in July:
13.9 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
17.4 days - Average sunshine days in October:
20 days - Average sunshine days in November:
23.4 days - Average sunshine days in December:
21.5 days
The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).
Average UV index
Riva, 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, February and December (UV index 2).
Average cloud cover
Riva, MD
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility
Riva, 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).
Riva, Maryland, USA
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