Climate and monthly weather forecastDismal Key, FL
Climate and monthly weather forecast
Weather in January
January, the same as December, in Dismal Key, Florida, is another pleasant winter month, with an average temperature fluctuating between 71.6°F (22°C) and 59.5°F (15.3°C). In Dismal Key, January is the month with the lowest recorded average temperatures, measuring a high of 71.6°F (22°C) and a low of 59.5°F (15.3°C). Weather in January »Weather in February
The last month of the winter, February, is a moderately hot month in Dismal Key, Florida, with an average temperature fluctuating between 61.9°F (16.6°C) and 73.6°F (23.1°C). Dismal Key starts February with an average high-temperature of a moderately hot 73.6°F (23.1°C), a minor shift from January's 71.6°F (22°C). Weather in February »Weather in March
The first month of the spring, March, is also a moderately hot month in Dismal Key, Florida, with an average temperature ranging between min 64°F (17.8°C) and max 75.9°F (24.4°C). March's arrival registers an average high-temperature of a still warm 75.9°F (24.4°C), closely aligning with the temperature of the previous month. Weather in March »Weather in April
April, the same as March, is a moderately hot spring month in Dismal Key, Florida, with an average temperature fluctuating between 70.3°F (21.3°C) and 81°F (27.2°C). April's commencement is accompanied by an average high-temperature of a still moderately hot 81°F (27.2°C), diverging marginally from March's 75.9°F (24.4°C). Weather in April »Weather in May
May, the last month of the spring in Dismal Key, is another warm month, with an average temperature varying between 84.4°F (29.1°C) and 74.1°F (23.4°C). On the advent of May, Dismal Key's average high-temperature exhibits a minor adjustment to a still warm 84.4°F (29.1°C) from April's 81°F (27.2°C). Weather in May »Weather in June
June, the first month of the summer in Dismal Key, is a tropical month, with an average temperature varying between 86.5°F (30.3°C) and 78.3°F (25.7°C). The arrival of June coincides with an average high-temperature of a tropical 86.5°F (30.3°C), indicating a minimal shift from May's 84.4°F (29.1°C). Weather in June »Weather in July
July, the same as June, in Dismal Key, Florida, is another hot summer month, with an average temperature fluctuating between 79.7°F (26.5°C) and 87.4°F (30.8°C). July commences with an average high-temperature of a still tropical 87.4°F (30.8°C), showing little deviation from June's 86.5°F (30.3°C). Weather in July »Weather in August
August, the last month of the summer in Dismal Key, is another tropical month, with an average temperature ranging between min 80.2°F (26.8°C) and max 88.3°F (31.3°C). Dismal Key's warmest temperatures are experienced in August, with average high temperatures of 88.3°F (31.3°C) and lows of 80.2°F (26.8°C). The heat index for August is computed to be a scorching 104°F (40°C). Weather in August »Weather in September
September, the first month of the autumn in Dismal Key, is still a tropical month, with an average temperature varying between 87.1°F (30.6°C) and 78.4°F (25.8°C). As August transitions into September, the average high-temperature rests at a still hot 87.1°F (30.6°C), maintaining a close resemblance to the previous month. Weather in September »Weather in October
October, like September, in Dismal Key, Florida, is another warm autumn month, with temperature in the range of an average low of 74.1°F (23.4°C) and an average high of 83.5°F (28.6°C). The advent of October observes an average high-temperature of a warm 83.5°F (28.6°C), nearly identical to September's 87.1°F (30.6°C). Weather in October »Weather in November
The last month of the autumn, November, is also a moderately hot month in Dismal Key, Florida, with an average temperature fluctuating between 78.4°F (25.8°C) and 67.8°F (19.9°C). November's average high-temperature is a still warm 78.4°F (25.8°C), maintaining a close comparison with October's 83.5°F (28.6°C). Weather in November »Weather in December
December, the first month of the winter in Dismal Key, is also a moderately hot month, with an average temperature ranging between min 64.4°F (18°C) and max 74.8°F (23.8°C). The average high-temperature for December is a still moderately hot 74.8°F (23.8°C), closely aligning with the temperature of the preceding month. Weather in December »Updated: Aug 28, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Dismal Key records the coldest temperatures in January, averaging a high of 71.6°F (22°C) and a low of 59.5°F (15.3°C).
Throughout the year, there are 162.1 rainfall days, and 21.69" (551mm) of precipitation is accumulated.
The months with the lowest UV index are January and February, with an average maximum UV index of 5.
March is the least humid month, with an average relative humidity of 72%.
The month with the least rainfall in Dismal Key is March, when the rain falls for 9.5 days and typically collects 0.63" (16mm) of precipitation.
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.
The months with the most sunshine are May and July, with an average of 11.1h of sunshine.
May through September, with an average maximum UV index of 7, are months with the highest UV index in Dismal Key.
With an average of 13h and 42min of daylight, June has the longest days of the year.
Dismal Key's warmest month, August, generally records average temperatures ranging from a high of 88.3°F (31.3°C) to a low of 80.2°F (26.8°C).
August is the month with the most rainfall. Rain falls for 22.4 days and accumulates 4.29" (109mm) of precipitation.
The most humid month is December, with an average relative humidity of 76%.
December has the shortest days of the year, with an average of 10h and 36min of daylight.
With an average of 6.7h of sunshine, December has the least sunshine of the year.
Average temperature
Dismal Key, FL
The warmest month (with the highest average high temperature) is August (88.3°F).
The month with the lowest average high temperature is January (71.6°F).
The month with the highest average low temperature is August (80.2°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).
Average pressure
Dismal Key, FL
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.99"Hg
- Average pressure in July:
30.02"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
29.94"Hg - Average pressure in October:
29.95"Hg - Average pressure in November:
30.04"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.94"Hg).
Average wind speed
Dismal Key, FL
- Average wind speed in January:
9mph - Average wind speed in February:
8.5mph - Average wind speed in March:
8.8mph - Average wind speed in April:
8.6mph - Average wind speed in May:
7.8mph - Average wind speed in June:
6.6mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.2mph - Average wind speed in December:
8.6mph
The windiest month (with the highest average wind speed) is November (9.2mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity
Dismal Key, FL
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is March (72%).
Average rainfall
Dismal Key, FL
- Average rainfall in January:
0.83" - Average rainfall in February:
0.71" - Average rainfall in March:
0.63" - Average rainfall in April:
0.71" - Average rainfall in May:
2.09" - Average rainfall in June:
3.31"
The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is March (0.63").
Average rainfall days
Dismal Key, FL
- Average rainfall days in January:
7.7 days - Average rainfall days in February:
7 days - Average rainfall days in March:
9.5 days - Average rainfall days in April:
11.3 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
18.8 days
- Average rainfall days in July:
20 days - Average rainfall days in August:
22.4 days - Average rainfall days in September:
21.5 days - Average rainfall days in October:
13.1 days - Average rainfall days in November:
7.6 days - Average rainfall days in December:
7.9 days
The month with the highest number of rainy days is August (22.4 days).
The month with the least rainy days is February (7 days).
Average daylight / Average sunshine
Dismal Key, FL
- Average daylight in January:
10h and 42min - Average daylight in February:
11h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 48min - Average daylight in May:
13h and 24min - Average daylight in June:
13h and 42min
- Average daylight in July:
13h and 36min - Average daylight in August:
13h and 0min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 30min - Average daylight in November:
10h and 54min - Average daylight in December:
10h and 36min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in January:
7h and 24min - Average sunshine in February:
8h and 54min - Average sunshine in March:
9h and 0min - Average sunshine in April:
9h and 42min - Average sunshine in May:
11h and 6min - Average sunshine in June:
10h and 54min
- Average sunshine in July:
11h and 6min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 12min - Average sunshine in October:
7h and 36min - Average sunshine in November:
6h and 54min - Average sunshine in December:
6h and 42min
The months with the most sunshine are May and July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days
Dismal Key, FL
- Average sunshine days in January:
21.8 days - Average sunshine days in February:
19.5 days - Average sunshine days in March:
20.3 days - Average sunshine days in April:
16.3 days - Average sunshine days in May:
12.9 days - Average sunshine days in June:
8.4 days
- Average sunshine days in July:
8.3 days - Average sunshine days in August:
6.8 days - Average sunshine days in September:
7.1 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
20.6 days - Average sunshine days in December:
20.2 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is August (6.8 days).
Average UV index
Dismal Key, FL
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and February (UV index 5).
Average cloud cover
Dismal Key, FL
The month with the most cloud cover is January (Cloud cover 28).
The months with the least cloud cover are March and April (Cloud cover 22).
Average visibility
Dismal Key, FL
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).
