Photo: Corey Coyle · CC BY 3.0Midwinter lows in Farley sink below those of 93% of U.S. towns
Expect July afternoons of about 82°. By July afternoons alone, it runs cooler than 83% of U.S. towns. Decade by decade the climate has edged up, 0.9° above 1901–2000. Garden planting can start around April 28; autumn frost returns near October 10.
A year in Farley at a glance
Each month’s typical high and low, and what it brings.
What stands out about Farley’s climate
Compared with towns across the U.S., with Farley’s place in Iowa beside it.
What a year in Farley feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 164 frost-free days a year
In half of years the last 32° night comes by April 28 and the first by October 10. Frost and day counts come from NOAA’s station at Cascade, IA, 10 miles from the town’s center, 290 ft lower.
The 2023 USDA map puts Farley’s center in zone 5a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −19°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 31 inches of snow a winter
Snow, measured at Cascade, IA, is heaviest from January through February, about 9 inches a month. Precipitation (rain plus melted snow) adds up to 39 inches a year; June is the wettest month and January the driest. Rain or snow falls on about 110 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Farley
90% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Cascade, IA.
Living with Farley’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
164 frost-free days in zone 5a. The last frost comes by Apr 28 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 10.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 0.5 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Farley from natural hazards, river flooding is the largest share (35%); heat waves, cold waves, winter storms and ice storms together are 20%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Farley and similar climates
TownRatings has no climate map of the towns around Farley yet.
Climates most like Farley’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Farley, IA | 11° | 82° | 39" | 31" |
| New Berlin, WI | 13° | 82° | 36" | 40" |
| Vernon Hills, IL | 16° | 83° | 37" | 34" |
| Colchester, VT | 10° | 81° | 38" | 50" |
| Westville, IN | 16° | 83° | 39" | 34" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Farley averaged 0.9° warmer than the 1900s. The biggest change is in December (+2.4°).
A smaller shift than in 86% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Farley compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Farley’s place among Iowa’s.
Farley weather by month
Highs, lows and precipitation from NOAA’s grid at Farley’s center; snow, wet days and snow on the ground from Cascade, IA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 26° | 11° | 1.3" | 8.3" | 8 | 22 | 9° – 31° |
| February | 31° | 15° | 1.5" | 8.8" | 8 | 19 | 9° – 36° |
| March | 44° | 26° | 2.1" | 4.2" | 9 | 7 | 27° – 50° |
| April | 58° | 36° | 4.0" | 0.9" | 11 | 1 | 38° – 53° |
| May | 69° | 48° | 4.6" | 0.0" | 12 | 0 | 53° – 66° |
| June | 79° | 58° | 5.9" | 0.0" | 12 | 0 | 66° – 72° |
| July | 82° | 62° | 4.9" | 0.0" | 9 | 0 | 66° – 78° |
| August | 80° | 60° | 4.1" | 0.0" | 9 | 0 | 64° – 76° |
| September | 73° | 52° | 3.7" | 0.0" | 9 | 0 | 56° – 68° |
| October | 60° | 39° | 3.1" | 0.2" | 9 | 0 | 45° – 55° |
| November | 45° | 28° | 2.3" | 1.8" | 8 | 3 | 28° – 47° |
| December | 31° | 17° | 1.7" | 6.9" | 8 | 13 | 10° – 35° |
| Year | 56° | 38° | 39.1" | 31.1" | 110 | 64 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 9° to 36°. June is the most reliable, staying within 7°.
Where Farley’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Farley’s center.
- Snow: Cascade, IA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Cascade, IA, 10 miles from the town’s center, 290 ft lower; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Farley’s climate
What is the weather like in Farley?
A typical July afternoon reaches 82°, a January night drops to 11°, and about 31 inches of snow falls in a normal winter. Colder January nights than 93% of U.S. towns; cooler July afternoons than 83% of U.S. towns.
How cold does it get in Farley in winter?
January nights average 11°. About 153 nights a year reach 32° or below and 18 reach 0° or below. In the coldest January of the last 30 years the month averaged 9°.
How much snow does Farley get?
About 31 inches in a normal winter at Cascade, IA, heaviest from January through February, about 9 inches a month, with snow on the ground about 64 days a year.
How hot does it get in Farley?
July, with a typical high of 82° and a low of 62°. About 11 days a year reach 90° (Cascade, IA).
When is the first and last frost in Farley?
In half of years the last spring frost (32°) comes by April 28 and the first fall frost by October 10, about 164 frost-free days, at Cascade, IA.
What growing zone is Farley in?
Zone 5a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −19°.
What is the best time of year to visit Farley?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Farley getting warmer?
Yes: 1991–2020 averaged 0.9° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 86% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Farley.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.