Ramsey, Illinois climate: Normal weather by month, frost dates and records
Ramsey's normal year runs from 19°F January nights to 85°F July afternoons, with 42.5 inches of precipitation and 13 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 11.4°C, January lows of −7°C, July highs of 30°C, 1,079 mm of precipitation a year.
- NOAA stationRamsey
- Station IDUSC00117126
- Location39.15°N 89.10°W
- Elevation600 ft (183 m)
- From the centerunder 1 mile
- Population895
On October 23, the normal high in Ramsey is 63°F and the normal low 40°F, and the chance of measurable rain or snow is 30%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Ramsey.
- Jan 35° 19°
- Feb 40° 22°
- Mar 51° 31°
- Apr 64° 42°
- May 73° 53°
- Jun 82° 62°
- Jul 85° 65°
- Aug 85° 62°
- Sep 79° 54°
- Oct 67° 42°
- Nov 52° 32°
- Dec 40° 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 Ramsey each month?
July is the warmest month, with normal highs of 85°F; January the coldest, with normal lows of 19°F. The most precipitation falls in May (4.75 in), the least in February (2.17 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 35°F | 19°F | 26.9°F | 2.84 | 3.6 | 9 | <1 | 27 | 9 h 40 min |
| February | 40°F | 22°F | 31.3°F | 2.17 | 4.4 | 9 | <1 | 23 | 10 h 40 min |
| March | 51°F | 31°F | 41.2°F | 3.11 | 1.6 | 10 | <1 | 18 | 11 h 50 min |
| April | 64°F | 42°F | 52.6°F | 4.59 | 0.3 | 11 | <1 | 5 | 13 h 10 min |
| May | 73°F | 53°F | 63.0°F | 4.75 | 0.0 | 12 | 1 | <1 | 14 h 20 min |
| June | 82°F | 62°F | 71.9°F | 4.57 | 0.0 | 10 | 6 | <1 | 14 h 50 min |
| July | 85°F | 65°F | 75.0°F | 4.06 | 0.0 | 9 | 10 | <1 | 14 h 40 min |
| August | 85°F | 62°F | 73.2°F | 3.57 | 0.0 | 8 | 8 | <1 | 13 h 40 min |
| September | 79°F | 54°F | 66.3°F | 3.16 | 0.0 | 7 | 4 | <1 | 12 h 30 min |
| October | 67°F | 42°F | 54.5°F | 3.55 | 0.0 | 9 | <1 | 5 | 11 h 10 min |
| November | 52°F | 32°F | 42.0°F | 3.44 | 0.5 | 9 | <1 | 16 | 10 h |
| December | 40°F | 24°F | 31.9°F | 2.68 | 2.4 | 9 | <1 | 25 | 9 h 30 min |
| Year (annual) | 63°F | 42°F | 52.5°F | 42.49 | 12.8 | 111 | 28 | 118 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 2°C | −7°C | −2.8°C | 72 mm | 9 cm |
| February | 5°C | −5°C | −0.4°C | 55 mm | 11 cm |
| March | 11°C | 0°C | 5.1°C | 79 mm | 4 cm |
| April | 18°C | 5°C | 11.4°C | 117 mm | 1 cm |
| May | 23°C | 11°C | 17.2°C | 121 mm | 0 cm |
| June | 28°C | 16°C | 22.2°C | 116 mm | 0 cm |
| July | 30°C | 18°C | 23.9°C | 103 mm | 0 cm |
| August | 29°C | 17°C | 22.9°C | 91 mm | 0 cm |
| September | 26°C | 12°C | 19.1°C | 80 mm | 0 cm |
| October | 19°C | 6°C | 12.5°C | 90 mm | 0 cm |
| November | 11°C | 0°C | 5.6°C | 87 mm | 1 cm |
| December | 4°C | −4°C | −0.1°C | 68 mm | 6 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00117126; 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 Ramsey?
Normal highs sit between 65°F and 85°F in May, June, August, September and October. Of those, September has the fewest days with rain (7).
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 USC00117126.
When is the last frost in Ramsey?
In Ramsey, the last spring frost (32°F) comes after April 15 in half of years and after May 1 in one year in ten; the first autumn frost comes before October 19 in half of years and before October 3 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 151 year in 10 after May 1; 9 in 10 after April 3
- First autumn frost, half of years before
- October 191 year in 10 before October 3; 9 in 10 before October 31
NOAA puts the median frost-free season at 185 days, and the season without a hard freeze (28°F) at 207 days.
A hard freeze (28°F) comes after April 4 in half of springs and before October 30 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Ramsey in zone 6b in ZIP code 62080, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Ramsey's NOAA station is in zone 6a: the coldest night of a typical year reaches −5°F (27 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Illinois · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00117126; 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 Ramsey?
In a normal year in Ramsey, 28 days a year reach 90°F (1 of them 100°F or more), 118 nights fall to 32°F or colder and 111 days bring measurable precipitation.
- Days at 90°F or more
- 28a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 118a normal year
- Days that stay below freezing
- 28high of 32°F or less
- Days with 0.01 inch of precipitation
- 111a normal year
- Days with 1 inch of snow or more
- 5a normal year
The highest temperature in this station's record (since 1990) is 106°F, on July 26, 2012; the lowest is −26°F, on January 19, 1994.
The wettest calendar year on that record is 2009, with 56.58 in; the snowiest season is 2013–14, with 33.7 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00117126; records: ACIS (NOAA Regional Climate Centers), station USC00117126. Records use complete months only; a month missing more than three days is left out.
How sunny is Ramsey?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Ramsey, 4.1 kWh per square metre a day. July is the sunniest month (83%) and December the cloudiest (63%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 64% | 1.9 |
| February | 66% | 2.8 |
| March | 67% | 3.7 |
| April | 72% | 5.0 |
| May | 73% | 5.6 |
| June | 81% | 6.4 |
| July | 83% | 6.4 |
| August | 82% | 5.7 |
| September | 82% | 4.7 |
| October | 74% | 3.3 |
| November | 71% | 2.3 |
| December | 63% | 1.6 |
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 Ramsey need?
A normal year in Ramsey brings 5,539 heating degree days, 3% more than the median U.S. place (5,373), and 1,016 cooling degree days, 12% 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 3,511 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,179 | 0 |
| February | 944 | 0 |
| March | 739 | 2 |
| April | 381 | 10 |
| May | 139 | 76 |
| June | 17 | 222 |
| July | 2 | 312 |
| August | 5 | 259 |
| September | 74 | 115 |
| October | 344 | 19 |
| November | 691 | 1 |
| December | 1,024 | 0 |
| Year (annual) | 5,539 | 1,016 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00117126. 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 Ramsey been warmer than normal lately?
2021 averaged 53.7°F, 1.2°F above the 1991-2020 normal of 52.5°F.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 53.7°F | +1.2°F | 45.72 | 11.4 |
Source: observed years: ACIS, station USC00117126. A year counts only with all twelve months complete.
How does Ramsey's climate compare?
Ramsey is warmer than 84 of the other 143 places with their own NOAA record in Illinois, and wetter than 107. Across the 7,247 U.S. stations with normals, its annual mean of 52.5°F is warmer than 52%.
In the Köppen classification computed from these normals, Ramsey 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 Ramsey share this climate record?
3 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.
- Herrick, IL358 people · 8 mi NE
- Fillmore, IL294 people · 10 mi W
- Bingham, IL61 people · 6 mi SW
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 Ramsey's climate
What is the coldest month in Ramsey?
January, with a normal high of 35°F and a normal low of 19°F. The warmest is July (85°F by day, 65°F at night).
Does it snow in Ramsey?
Yes: 13 inches in a normal year, falling on 11 days with 0.1 inch or more, the most in February (4.4 inches).
What is the rainiest month in Ramsey?
May, with 4.75 in of precipitation in a normal year; the driest is February with 2.17 in.
What plant hardiness zone is Ramsey in?
The USDA's 2023 map puts Ramsey in zone 6b in ZIP code 62080, the nearest ZIP area. By the same method at Ramsey's NOAA station, the coldest night of a typical year reaches −5°F (27 years, 1991-2020): zone 6a.
How late can frost come in Ramsey?
In half of years the last 32°F night comes after April 15; in one year in ten it comes after May 1. Waiting until May 1 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Illinois climateThe statewide normals and every place in the state
- Vandalia, IL13 miles from this station, 54.2°F a year
- Pana, IL16 miles from this station, 53.6°F a year
- Brownstown, IL16 miles from this station, 54.6°F a year
- Hillsboro, IL21 miles from this station, 55.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made