Davenport climate
Davenport (Iowa, United States) has a hot-summer humid continental climate (Köppen Dfa). The average temperature over the year is 10 °C51 °F, and about 924 mm36 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Davenport climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | −130 | −1014 | −522 | 341.3 | 30 |
| Feb | 135 | −917 | −426 | 421.6 | 27 |
| Mar | 948 | −228 | 338 | 602.4 | 22 |
| Apr | 1762 | 439 | 1051 | 923.6 | 7 |
| May | 2272 | 1151 | 1762 | 1154.5 | 0 |
| Jun | 2882 | 1762 | 2272 | 1244.9 | 0 |
| Jul | 3086 | 1966 | 2476 | 953.7 | 0 |
| Aug | 2985 | 1864 | 2374 | 993.9 | 0 |
| Sep | 2578 | 1355 | 1966 | 873.4 | 0 |
| Oct | 1763 | 542 | 1152 | 742.9 | 4 |
| Nov | 948 | −130 | 439 | 512.0 | 18 |
| Dec | 235 | −720 | −228 | 502.0 | 28 |
| Year | 3086 | −1014 | 1051 | 92436 | 137 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 85% | 66% | 1.8 | 9:29 |
| Feb | 82% | 65% | 2.8 | 10:33 |
| Mar | 77% | 64% | 3.7 | 11:49 |
| Apr | 74% | 60% | 4.8 | 13:17 |
| May | 75% | 62% | 5.6 | 14:30 |
| Jun | 75% | 55% | 6.2 | 15:10 |
| Jul | 73% | 48% | 6.3 | 14:54 |
| Aug | 70% | 48% | 5.5 | 13:50 |
| Sep | 71% | 44% | 4.5 | 12:25 |
| Oct | 74% | 56% | 3.0 | 11:00 |
| Nov | 79% | 61% | 2.1 | 9:47 |
| Dec | 85% | 68% | 1.5 | 9:11 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Davenport is like
The warmest month is July, with an average high of 30 °C86 °F and a low of 19 °C66 °F. The coldest is January, when highs average −1 °C30 °F and lows −10 °C14 °F. Seasons are strongly marked: the warmest month is on average 29.7 °C53.5 °F warmer than the coldest.
Annual precipitation is moderate at about 924 mm36 in. The wettest three-month stretch is May–July, which brings 36% of the annual total. The wettest month is June (124 mm4.9 in), the driest is January (34 mm1.3 in).
Relative humidity ranges from 70% in August to 85% in December. The clearest skies (lowest average cloud amount, 44%) are typical of September. Average wind speed near the ground ranges from 8 km/h (5 mph) in August to 14 km/h (9 mph) in April. Daylight lasts from about 9.2 hours in December to 15.2 hours in June.
A lasting snow cover is typical in December–February, when the average snow depth in the reanalysis exceeds 10 cm (deepest in January, about 16 cm).
Best time to visit Davenport
Based on these averages, the most comfortable months for sightseeing and outdoor activities are September: average highs of 25 °C78 °F to 25 °C78 °F with 87 mm3.4 in to 87 mm3.4 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of −1 °C30 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Davenport
- Winter (December–February) — highs −130 to 2 °C35 °F, lows −1014 to −7 °C20 °F, about 42 mm1.6 in of precipitation a month. Pack a winter coat, hat, gloves and warm, non-slip boots and shoes with good grip, as frost is common.
- Spring (March–May) — highs 948 to 22 °C72 °F, lows −228 to 11 °C51 °F, about 89 mm3.5 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 2882 to 30 °C86 °F, lows 1762 to 19 °C66 °F, about 106 mm4.2 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
- Autumn (September–November) — highs 948 to 25 °C78 °F, lows −130 to 13 °C55 °F, about 71 mm2.8 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
How Davenport compares
Compared with Cedar Rapids, about 104 km to the northwest, Davenport is on average 0.9 °C1.6 °F warmer and receives a similar amount of precipitation. The difference is largest in February (1.2 °C2.2 °F warmer).
Of the 222 places in the United States covered by World Climates, Davenport is the 190th warmest by annual mean temperature and the 124th wettest by annual precipitation. See all of them on the United States climate page.
Places in other countries with the most similar temperature and rainfall pattern: Windsor (Canada, Dfa), Bălţi (Moldova, Dfa) and Wŏnju (South Korea, Dwa).
Nearby places
- Cedar Rapids 104 km · 9 °C49 °F · 922 mm36 in
- Peoria 124 km · 11 °C52 °F · 983 mm39 in
- Rockford 148 km · 9 °C48 °F · 967 mm38 in
- Aurora 189 km · 10 °C49 °F · 983 mm39 in
- Madison 198 km · 8 °C47 °F · 970 mm38 in
- Elgin 199 km · 10 °C49 °F · 983 mm39 in
- Springfield 207 km · 12 °C53 °F · 1,001 mm39 in
- Joliet 208 km · 10 °C51 °F · 985 mm39 in
Frequently asked questions
What is the warmest month in Davenport?
July is the warmest month in Davenport, with an average high of 30 °C (86 °F) and an average low of 19 °C (66 °F).
What is the coldest month in Davenport?
January is the coldest month, with an average high of -1 °C (30 °F) and an average low of -10 °C (14 °F).
When does it rain the most in Davenport?
June is the wettest month with about 124 mm (4.9 in) of precipitation; January is the driest with about 34 mm (1.3 in).
What is the best time to visit Davenport?
Judging by long-term averages, the most comfortable months are September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.