When is the best time to go to Rock Island
The chart above shows the best time of year to visit Rock Island, United States. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.
Average temperatures in Rock Island
Rock Island weather by month
Please note our recommendations for when to visit Rock Island are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.
January
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| -2°C | 35mm | 5.4hrs | 10.6hrs |
January in Rock Island is generally reasonably dry with the temperature being cold.
Based on weather alone, this is probably a time of year to avoid going to Rock Island for your holidays. The weather is often not a good and not conducive to spending time outdoors.
January is in the winter in Rock Island and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing -2°C (28°F), whilst at night -12°C (11°F) is normal.
On average January is the driest month of the year in Rock Island with around 35mm 1.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.4 hours of sunshine per day.
Rock Island weather in January »
February
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 1°C | 26mm | 6.3hrs | 11.6hrs |
February in Rock Island is generally dry with the temperature being cold.
Although outside the main holiday season, there is still plenty of pretty acceptable weather around this time of year. This makes it an okay time to visit Rock Island.
February is in the winter in Rock Island and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a freezing 1°C (34°F), whilst at night -9°C (16°F) is normal.
On average February is the 2nd driest month of the year in Rock Island with around 26mm 1 inches of rain making it a dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.3 hours of sunshine per day.
Rock Island weather in February »
March
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 7°C | 63mm | 6.6hrs | 12.8hrs |
The weather in March in Rock Island is characteristically cool and reasonably dry.
Based on weather alone, this is probably a time of year to avoid going to Rock Island for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
March is in the spring in Rock Island and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 8°C (47°F), whilst at night -3°C (28°F) is normal.
On average March is the 3rd driest month of the year in Rock Island with around 63mm 2.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.6 hours of sunshine per day.
Rock Island weather in March »
April
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 15°C | 90mm | 7.8hrs | 14.3hrs |
Rock Island's weather in April is typically mild and a little damp in nature.
Although outside the main holiday season, there is still plenty of fairly acceptable weather around this time of year. This makes it an okay time to visit Rock Island.
April is in the spring in Rock Island and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 17°C (62°F), whilst at night 4°C (39°F) is normal.
On average April is the 4th driest month of the year in Rock Island with around 90mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.8 hours of sunshine per day.
Rock Island weather in April »
May
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 21°C | 94mm | 9.2hrs | 15.5hrs |
May is a a little damp month in Rock Island and the temperature is generally mild.
It is perhaps a good month to visit Rock Island, with some inordinately good weather at this time of year.
May is in the spring in Rock Island and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a comfortable 23°C (74°F), whilst at night 11°C (51°F) is normal.
On average May is the 5th driest month of the year in Rock Island with around 94mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.2 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 26°C | 106mm | 10.4hrs | 10.6hrs |
Rock Island's weather in June is typically warm and damp in nature.
It is perhaps a good month to visit Rock Island, with some particularly good weather at this time of year.
June is in the summer in Rock Island and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a comfortable 29°C (83°F), whilst at night 16°C (60°F) is normal.
On average June is the 6th driest month of the year in Rock Island with around 106mm 4.2 inches of rain making it a damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.4 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 27°C | 114mm | 10.6hrs | 11.6hrs |
July in Rock Island is generally damp with the temperature being hot.
It is perhaps a good month to visit Rock Island, with some extremely good weather at this time of year.
July is in the summer in Rock Island and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a muggy 30°C (86°F), whilst at night 18°C (65°F) is normal.
On average July is the 6th wettest month of the year in Rock Island with around 114mm 4.5 inches of rain making it a damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.6 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 26°C | 99mm | 9.7hrs | 12.8hrs |
The weather in August in Rock Island is characteristically warm, humid and a little damp.
It is perhaps the perfect month to visit Rock Island, with some surprisingly good weather at this time of year.
August is in the summer in Rock Island and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 17°C (62°F) is normal.
On average August is the 5th wettest month of the year in Rock Island with around 99mm 3.9 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.7 hours of sunshine per day.
Rock Island weather in August »
September
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 22°C | 96mm | 8.1hrs | 14.3hrs |
Rock Island's weather in September is typically warm and a little damp in nature.
It is perhaps a good month to visit Rock Island, with some particularly good weather at this time of year.
September is in the fall / autumn in Rock Island and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 25°C (77°F), whilst at night 12°C (54°F) is normal.
On average September is the 4th wettest month of the year in Rock Island with around 96mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.1 hours of sunshine per day.
Rock Island weather in September »
October
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 17°C | 66mm | 7hrs | 15.5hrs |
October is a reasonably dry month in Rock Island and the temperature is generally mild.
Although outside the main holiday season, there is still plenty of fairly acceptable weather around this time of year. This makes it an okay time to visit Rock Island.
October is in the fall / autumn in Rock Island and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a cool 19°C (66°F), whilst at night 6°C (43°F) is normal.
On average October is the 3rd wettest month of the year in Rock Island with around 66mm 2.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
Rock Island weather in October »
November
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 8°C | 57mm | 4.7hrs | 10.6hrs |
November is a reasonably dry month in Rock Island and the temperature is generally cool.
Based on weather alone, this is probably a time of year to avoid going to Rock Island for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
November is in the fall / autumn in Rock Island and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cold 9°C (49°F), whilst at night -1°C (31°F) is normal.
On average November is the 2nd wettest month of the year in Rock Island with around 57mm 2.2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.7 hours of sunshine per day.
Rock Island weather in November »
December
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 1°C | 48mm | 4.3hrs | 11.6hrs |
December in Rock Island is generally reasonably dry with the temperature being cold.
Based on weather alone, this is probably a time of year to avoid going to Rock Island for your holidays. The weather is often not a good and not conducive to spending time outdoors.
December is in the winter in Rock Island and is typically the warmest month of the year. Daytime maximum temperatures average around a freezing 1°C (34°F), whilst at night -8°C (18°F) is normal.
On average December is the wettest month of the year in Rock Island with around 48mm 1.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.3 hours of sunshine per day.
Other monthly averages
Rock Island weather stats
| Hottest month: | July | 29.9°C 85.8°F |
|---|---|---|
| Driest month: | February | 26mm 1ins |
| Sunniest month: | July | 10.6hrs |
| Coldest month: | January | -2.3°C 27.9°F |
| Wettest month: | July | 114mm 4.5ins |
| Warmest sea: | August | 20.2°C 68.4°F |
© Google
Locations nearby
Top United States locations
- Anaheim
- Anchorage
- Aspen
- Atlanta
- Boston
- Breckenridge
- Charleston
- Chicago
- Coney Island
- Dallas
- Death Valley
- Denver
- Destin
- Detroit
- Glacier National Park
- Grand Canyon
- Honolulu
- Houston
- Indianapolis
- Key West
- Lake Tahoe
- Las Vegas
- Los Angeles
- Malibu
- Manhattan
- Memphis
- Miami
- Minneapolis
- Myrtle Beach
- New Orleans
- New York City
- Niagara Falls
- Ocean City
- Orlando
- Palm Springs
- Philadelphia
- Phoenix
- Salt Lake City
- San Diego
- San Francisco
- Scottsdale
- Seattle
- Sedona
- Sonoma
- Washington, D. C.
- Yosemite National Park
- Zion National Park