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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 sea temperature
- 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, in Duck Key, Florida, is an agreeable winter month, with an average temperature varying between 67.5°F (19.7°C) and 72.9°F (22.7°C). Duck Key records the coldest temperatures in January, averaging a high of 72.9°F (22.7°C) and a low of 67.5°F (19.7°C). Weather in January »
Weather in February
February, the last month of the winter in Duck Key, is a moderately hot month, with an average temperature fluctuating between 70°F (21.1°C) and 73.4°F (23°C). Duck Key's average high-temperature in February sits at a moderately hot 73.4°F (23°C), showing little difference from the previous month. Weather in February »
Weather in March
The first month of the spring, March, is also a moderately hot month in Duck Key, Florida, with an average temperature ranging between max 74.3°F (23.5°C) and min 70.5°F (21.4°C). In March, Duck Key experiences a minor shift in meteorological conditions with average high-temperatures marked at a still moderately hot 74.3°F (23.5°C), closely mirroring the climate in February. Weather in March »
Weather in April
April, like March, in Duck Key, Florida, is a moderately hot spring month, with temperature in the range of an average low of 75°F (23.9°C) and an average high of 77.4°F (25.2°C). April's advent notes a subtle adjustment in average high-temperature to a still warm 77.4°F (25.2°C) from March. Weather in April »
Weather in May
The last month of the spring, May, is another warm month in Duck Key, Florida, with an average temperature ranging between max 80.4°F (26.9°C) and min 77.7°F (25.4°C). Duck Key observes an average high-temperature of a still warm 80.4°F (26.9°C) in May, barely different from 77.4°F (25.2°C) in April. Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Duck Key, Florida, with temperature in the range of an average low of 81.3°F (27.4°C) and an average high of 83.5°F (28.6°C). The average high-temperature is a still warm 83.5°F (28.6°C) in June, hardly different from the 80.4°F (26.9°C) recorded in May. Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Duck Key, Florida, with an average temperature fluctuating between 84.6°F (29.2°C) and 82.6°F (28.1°C). The advent of July reveals an average high-temperature of a still warm 84.6°F (29.2°C), showing minimal difference from the prior month. Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Duck Key, Florida, with temperature in the range of an average high of 85.5°F (29.7°C) and an average low of 82.9°F (28.3°C). The warmest month is August, with an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 82.9°F (28.3°C). The heat index value for August is appraised at a sweltering 95°F (35°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Duck Key, Florida, with an average temperature varying between 84.6°F (29.2°C) and 82°F (27.8°C). The onset of September notes an average high-temperature of a still warm 84.6°F (29.2°C), subtly shifted from August's 85.5°F (29.7°C). Weather in September »
Weather in October
October, the same as September, is another warm autumn month in Duck Key, Florida, with an average temperature fluctuating between 79.3°F (26.3°C) and 82.2°F (27.9°C). At the start of October, Duck Key's average high-temperature reaches a still warm 82.2°F (27.9°C), subtly different from the preceding month. Weather in October »
Weather in November
The last month of the autumn, November, is another warm month in Duck Key, Florida, with an average temperature fluctuating between 74.1°F (23.4°C) and 77.9°F (25.5°C). The arrival of November brings an average high-temperature of a still warm 77.9°F (25.5°C), subtly diverging from October's 82.2°F (27.9°C). Weather in November »
Weather in December
December, the first month of the winter in Duck Key, is still a warm month, with an average temperature fluctuating between 75.6°F (24.2°C) and 71.4°F (21.9°C). December's presence records an average high-temperature of a still warm 75.6°F (24.2°C), closely mirroring November's climate. Weather in December »
Updated: Jul 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 month is the coldest?
Duck Key's temperature records reveal January as the coldest month, marked by average highs of 72.9°F (22.7°C) and lows of 67.5°F (19.7°C).
How much does it rain?
In Duck Key, during the entire year, the rain falls for 186.2 days and collects up to 24.45" (621mm) of precipitation.
What are the months with the coldest ocean?
January and February, with an average ocean temperature of 73.9°F (23.3°C), are months with the coldest seawater.
What is the month with the lowest UV index?
With an average maximum UV index of 5, January is the month with the lowest UV index.
What is the most humid month?
February and December, with an average relative humidity of 77%, are most humid months.
What is the least humid month?
March is the least humid month, with an average relative humidity of 73%.
What is the driest month?
March is the month with the least rainfall. Rain falls for 10.8 days and accumulates 0.43" (11mm) of precipitation.
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 is the highest UV index?
April through October, with an average maximum UV index of 7, are months with the highest UV index.
When are the longest days?
With an average of 13h and 42min of daylight, June has the longest days of the year.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 11.1h of sunshine.
What is the warmest month?
In Duck Key, August is the month with the highest recorded average temperatures, measuring a high of 85.5°F (29.7°C) and a low of 82.9°F (28.3°C).
When is the ocean warmest?
The month with the warmest seawater is August, with an average ocean temperature of 86.5°F (30.3°C).
What is the wettest month?
The month with the most rainfall is September, when the rain falls for 23 days and typically aggregates up to 4.21" (107mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 10h and 36min of daylight.
What is the month with the least sunshine?
The month with the least sunshine in Duck Key is December, with an average of 6.6h of sunshine.
Average temperature
Duck Key, FL
The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (72.9°F).
The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (67.5°F).
Average pressure
Duck Key, FL
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
29.99"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:
29.94"Hg - Average pressure in November:
30.02"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are September and October (29.94"Hg).
Average wind speed
Duck Key, FL
- Average wind speed in January:
13.4mph - Average wind speed in February:
12.7mph - Average wind speed in March:
13.3mph - Average wind speed in April:
12.7mph - Average wind speed in May:
11.8mph - Average wind speed in June:
9.8mph
- Average wind speed in July:
9mph - Average wind speed in August:
9.5mph - Average wind speed in September:
9.8mph - Average wind speed in October:
12.8mph - Average wind speed in November:
13.3mph - Average wind speed in December:
12.9mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (9mph).
Average humidity
Duck Key, FL
The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is March (73%).
Average rainfall
Duck Key, FL
- Average rainfall in January:
0.79" - Average rainfall in February:
0.71" - Average rainfall in March:
0.43" - Average rainfall in April:
1.1" - Average rainfall in May:
2.48" - Average rainfall in June:
3.11"
- Average rainfall in July:
2.95" - Average rainfall in August:
3.31" - Average rainfall in September:
4.21" - Average rainfall in October:
3.27" - Average rainfall in November:
1.02" - Average rainfall in December:
1.06"
The wettest month (with the highest rainfall) is September (4.21").
The driest month (with the least rainfall) is March (0.43").
Average rainfall days
Duck Key, FL
- Average rainfall days in January:
10.5 days - Average rainfall days in February:
10.3 days - Average rainfall days in March:
10.8 days - Average rainfall days in April:
11.8 days - Average rainfall days in May:
15.4 days - Average rainfall days in June:
19.7 days
- Average rainfall days in July:
20.1 days - Average rainfall days in August:
21 days - Average rainfall days in September:
23 days - Average rainfall days in October:
18.5 days - Average rainfall days in November:
12.6 days - Average rainfall days in December:
12.5 days
The month with the highest number of rainy days is September (23 days).
The month with the least rainy days is February (10.3 days).
Average sea temperature
Duck Key, FL
The best month for swimming (with the highest average sea temperature) is August (86.6°F).
The coldest months (with the lowest average sea temperature) are January and February (73.9°F).
Average daylight / Average sunshine
Duck Key, FL
- Average daylight in January:
10h and 5min - Average daylight in February:
11h and 2min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 5min - Average daylight in May:
13h and 2min - Average daylight in June:
13h and 4min
- Average daylight in July:
13h and 3min - Average daylight in August:
13h and 0min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 4min - Average daylight in November:
10h and 5min - Average daylight in December:
10h and 4min
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 1min - Average sunshine in February:
8h and 5min - Average sunshine in March:
8h and 5min - Average sunshine in April:
9h and 5min - Average sunshine in May:
10h and 5min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
11h and 1min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 0min - Average sunshine in October:
7h and 2min - Average sunshine in November:
6h and 4min - Average sunshine in December:
6h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days
Duck Key, FL
- Average sunshine days in January:
16.2 days - Average sunshine days in February:
15 days - Average sunshine days in March:
18 days - Average sunshine days in April:
13.9 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
7.9 days
- Average sunshine days in July:
9.2 days - Average sunshine days in August:
7.3 days - Average sunshine days in September:
4.6 days - Average sunshine days in October:
8.9 days - Average sunshine days in November:
11.9 days - Average sunshine days in December:
13.8 days
The month with the most sunshine days is March (18 days).
The month with the least sunshine days is September (4.6 days).
Average UV index
Duck Key, FL
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover
Duck Key, FL
The months with the most cloud cover are January and October (Cloud cover 32).
The month with the least cloud cover is April (Cloud cover 23).
Average visibility
Duck 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).