Ogden, Illinois climate: Normal weather by month, frost dates and records
Ogden's normal year runs from 18°F January nights to 84°F July afternoons, with 41.2 inches of precipitation and 25 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 11.2°C, January lows of −8°C, July highs of 29°C, 1,047 mm of precipitation a year.
- NOAA stationOgden
- Station IDUSC00116344
- Location40.11°N 87.96°W
- Elevation675 ft (206 m)
- Population730
On October 23, the normal high in Ogden is 62°F and the normal low 41°F, and the chance of measurable rain or snow is 36%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Ogden.
- Jan 34° 18°
- Feb 39° 22°
- Mar 51° 30°
- Apr 64° 41°
- May 73° 52°
- Jun 82° 62°
- Jul 84° 65°
- Aug 83° 63°
- Sep 78° 56°
- Oct 66° 44°
- Nov 51° 32°
- Dec 39° 24°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Ogden each month?
July is the warmest month, with normal highs of 84°F; January the coldest, with normal lows of 18°F. The most precipitation falls in May (4.96 in), the least in February (2.18 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 34°F | 18°F | 26.1°F | 2.38 | 5.9 | 10 | <1 | 27 | 9 h 40 min |
| February | 39°F | 22°F | 30.3°F | 2.18 | 9.3 | 10 | <1 | 24 | 10 h 40 min |
| March | 51°F | 30°F | 40.4°F | 2.82 | 3.0 | 13 | <1 | 19 | 11 h 50 min |
| April | 64°F | 41°F | 52.3°F | 3.88 | 0.3 | 12 | <1 | 6 | 13 h 10 min |
| May | 73°F | 52°F | 62.9°F | 4.96 | 0.0 | 14 | 1 | <1 | 14 h 20 min |
| June | 82°F | 62°F | 71.8°F | 4.96 | 0.0 | 13 | 3 | <1 | 15 h |
| July | 84°F | 65°F | 74.4°F | 4.39 | 0.0 | 11 | 5 | <1 | 14 h 50 min |
| August | 83°F | 63°F | 72.8°F | 3.50 | 0.0 | 10 | 2 | <1 | 13 h 50 min |
| September | 78°F | 56°F | 66.8°F | 3.35 | 0.0 | 9 | 3 | <1 | 12 h 30 min |
| October | 66°F | 44°F | 55.0°F | 3.32 | 0.0 | 11 | <1 | 3 | 11 h 10 min |
| November | 51°F | 32°F | 41.8°F | 3.15 | 1.0 | 10 | <1 | 17 | 10 h |
| December | 39°F | 24°F | 31.6°F | 2.35 | 5.5 | 11 | <1 | 23 | 9 h 20 min |
| Year (annual) | 62°F | 43°F | 52.2°F | 41.24 | 25.0 | 134 | 14 | 118 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 1°C | −8°C | −3.3°C | 60 mm | 15 cm |
| February | 4°C | −6°C | −0.9°C | 55 mm | 24 cm |
| March | 10°C | −1°C | 4.7°C | 72 mm | 8 cm |
| April | 18°C | 5°C | 11.3°C | 99 mm | 1 cm |
| May | 23°C | 11°C | 17.2°C | 126 mm | 0 cm |
| June | 28°C | 17°C | 22.1°C | 126 mm | 0 cm |
| July | 29°C | 18°C | 23.6°C | 112 mm | 0 cm |
| August | 28°C | 17°C | 22.7°C | 89 mm | 0 cm |
| September | 26°C | 13°C | 19.3°C | 85 mm | 0 cm |
| October | 19°C | 7°C | 12.8°C | 84 mm | 0 cm |
| November | 11°C | 0°C | 5.4°C | 80 mm | 3 cm |
| December | 4°C | −5°C | −0.2°C | 60 mm | 14 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00116344; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Ogden?
Normal highs sit between 65°F and 85°F in May, June, July, August, September and October. Of those, September has the fewest days with rain (9).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00116344.
When is the last frost in Ogden?
In Ogden, the last spring frost (32°F) comes after April 20 in half of years and after May 7 in one year in ten; the first autumn frost comes before October 21 in half of years and before October 8 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 201 year in 10 after May 7; 9 in 10 after April 7
- First autumn frost, half of years before
- October 211 year in 10 before October 8; 9 in 10 before November 2
NOAA puts the median frost-free season at 182 days, and the season without a hard freeze (28°F) at 203 days.
A hard freeze (28°F) comes after April 9 in half of springs and before October 31 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Ogden in zone 6a in ZIP code 61859, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Ogden's NOAA station is in zone 6a: the coldest night of a typical year reaches −6°F (19 complete years).
Frost dates for every NOAA station in Illinois · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00116344; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Ogden?
In a normal year in Ogden, 14 days a year reach 90°F, 118 nights fall to 32°F or colder and 134 days bring measurable precipitation.
- Days at 90°F or more
- 14a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 118a normal year
- Days that stay below freezing
- 33high of 32°F or less
- Days with 0.01 inch of precipitation
- 134a normal year
- Days with 1 inch of snow or more
- 8a normal year
The highest temperature in this station's record (since 2001) is 100°F, on June 15, 2022; the lowest is −16°F, on January 17, 2009.
The wettest calendar year on that record is 2015, with 52.26 in; the snowiest season is 2013–14, with 53.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00116344; records: ACIS (NOAA Regional Climate Centers), station USC00116344. Records use complete months only; a month missing more than three days is left out.
How sunny is Ogden?
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Ogden, 4.0 kWh per square metre a day. July is the sunniest month (81%) and December the cloudiest (60%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 62% | 1.8 |
| February | 66% | 2.7 |
| March | 67% | 3.6 |
| April | 70% | 4.8 |
| May | 72% | 5.5 |
| June | 79% | 6.3 |
| July | 81% | 6.3 |
| August | 81% | 5.6 |
| September | 80% | 4.6 |
| October | 72% | 3.1 |
| November | 69% | 2.1 |
| December | 60% | 1.5 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Ogden need?
A normal year in Ogden brings 5,638 heating degree days, 5% more than the median U.S. place (5,373), and 992 cooling degree days, 9% more than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,471 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,206 | 0 |
| February | 973 | 0 |
| March | 765 | 3 |
| April | 390 | 8 |
| May | 150 | 83 |
| June | 10 | 214 |
| July | 3 | 292 |
| August | 4 | 244 |
| September | 72 | 126 |
| October | 332 | 22 |
| November | 699 | 1 |
| December | 1,035 | 0 |
| Year (annual) | 5,638 | 992 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00116344. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Ogden been warmer than normal lately?
2024 averaged 54.7°F, 2.5°F above the 1991-2020 normal of 52.2°F. 3 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 53.2°F | +1.0°F | 42.78 | 23.1 |
| 2022 | 51.3°F | −0.9°F | 36.90 | 25.0 |
| 2023 | 54.2°F | +2.0°F | 33.65 | 11.2 |
| 2024 | 54.7°F | +2.5°F | 44.41 | 13.5 |
Source: observed years: ACIS, station USC00116344. A year counts only with all twelve months complete.
How does Ogden's climate compare?
Ogden is warmer than 77 of the other 143 places with their own NOAA record in Illinois, and wetter than 94. Across the 7,247 U.S. stations with normals, its annual mean of 52.2°F is warmer than 50%.
In the Köppen classification computed from these normals, Ogden is Dfa: continental, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Ogden share this climate record?
6 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- St. Joseph, IL3,772 people · 4 mi W
- Sidney, IL1,194 people · 8 mi SW
- Homer, IL1,076 people · 5 mi S
- Fithian, IL473 people · 4 mi E
- Royal, IL288 people · 6 mi N
- Muncie, IL148 people · 6 mi E
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Ogden's climate
What is the coldest month in Ogden?
January, with a normal high of 34°F and a normal low of 18°F. The warmest is July (84°F by day, 65°F at night).
Does it snow in Ogden?
Yes: 25 inches in a normal year, falling on 24 days with 0.1 inch or more, the most in February (9.3 inches).
What is the rainiest month in Ogden?
May, with 4.96 in of precipitation in a normal year; the driest is February with 2.18 in.
What plant hardiness zone is Ogden in?
The USDA's 2023 map puts Ogden in zone 6a in ZIP code 61859, the nearest ZIP area. By the same method at Ogden's NOAA station, the coldest night of a typical year reaches −6°F (19 years, 1991-2020): zone 6a.
How late can frost come in Ogden?
In half of years the last 32°F night comes after April 20; in one year in ten it comes after May 7. Waiting until May 7 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Illinois climateThe statewide normals and every place in the state
- Sidell, IL12 miles from this station, 51.5°F a year
- Danville, IL16 miles from this station, 53.1°F a year
- Rantoul, IL17 miles from this station, 52.3°F a year
- Champaign, IL17 miles from this station, 52.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made