Few U.S. towns get less rain and snow than Iyanbito: 11 inches a year
In July the day’s top temperature is typically 87°. From frosty January to warm July, readings climb 70°. By January nights alone, it runs colder than 75% of U.S. towns. Seedlings are safe outdoors from about May 11, with the first autumn frost due around October 7.
A year in Iyanbito at a glance
Each month’s typical high and low, and what it brings.
What stands out about Iyanbito’s climate
Compared with towns across the U.S., with Iyanbito’s place in New Mexico beside it.
What a year in Iyanbito feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 148 frost-free days a year
In half of years the last 32° night comes by May 11 and the first by October 7. Frost and day counts come from NOAA’s station at Gallup Sand & Gravel, NM, 12 miles from the town’s center, 310 ft lower.
The 2023 USDA map puts Iyanbito’s center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −6°. 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 21 inches of snow a winter
Snow, measured at Gallup Sand & Gravel, NM, falls mostly in February and December. Precipitation (rain plus melted snow) adds up to 11 inches a year; August is the wettest month and April the driest. Rain or snow falls on about 68 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Iyanbito
92% 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 Gallup Sand & Gravel, NM.
Living with Iyanbito’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
148 frost-free days in zone 6a. The last frost comes by May 11 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 7.
Months with highs of 62–84° and lows of 40° or more: August and September. 9.5 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Iyanbito from natural hazards, river flooding is the largest share (56%); heat waves, cold waves, winter storms and ice storms together are 31%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Iyanbito and its neighbors
Every town next door is within a degree of Iyanbito in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Iyanbito’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 |
|---|---|---|---|---|
| Iyanbito, NM | 17° | 87° | 11" | 21" |
| Blackfoot, ID | 16° | 88° | 11" | 15" |
| Hamilton, MT | 20° | 86° | 13" | 17" |
| Ephraim, UT | 14° | 89° | 12" | 20" |
| Wellington, CO | 16° | 88° | 14" | 34" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Iyanbito averaged 1.4° warmer than the 1900s. The biggest change is in March (+2.7°).
A bigger shift than in 51% 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 Iyanbito compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Iyanbito’s place among New Mexico’s.
Iyanbito weather by month
Highs, lows and precipitation from NOAA’s grid at Iyanbito’s center; snow, wet days and snow on the ground from Gallup Sand & Gravel, NM. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 44° | 17° | 0.8" | 4.5" | 6 | 9 | 25° – 36° |
| February | 48° | 21° | 0.6" | 5.7" | 5 | 5 | 29° – 40° |
| March | 57° | 26° | 0.6" | 2.0" | 4 | 1 | 36° – 46° |
| April | 64° | 31° | 0.4" | 0.7" | 4 | 0 | 43° – 52° |
| May | 73° | 39° | 0.5" | 0.5" | 4 | 0 | 52° – 60° |
| June | 85° | 49° | 0.4" | 0.0" | 2 | 0 | 62° – 71° |
| July | 87° | 56° | 1.8" | 0.0" | 11 | 0 | 68° – 75° |
| August | 84° | 54° | 1.9" | 0.0" | 10 | 0 | 66° – 73° |
| September | 78° | 46° | 1.3" | 0.0" | 7 | 0 | 58° – 65° |
| October | 67° | 35° | 1.1" | 0.4" | 5 | 0 | 47° – 56° |
| November | 54° | 24° | 0.8" | 1.6" | 4 | 2 | 32° – 46° |
| December | 44° | 17° | 0.7" | 5.2" | 6 | 7 | 24° – 36° |
| Year | 65° | 34° | 10.8" | 20.6" | 68 | 24 |
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 32° to 46°. August is the most reliable, staying within 7°.
Where Iyanbito’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 Iyanbito’s center.
- Snow: Gallup Sand & Gravel, NM.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Gallup Sand & Gravel, NM, 12 miles from the town’s center, 310 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 Iyanbito’s climate
What is the weather like in Iyanbito?
A typical July afternoon reaches 87°, a January night drops to 17°, and about 21 inches of snow falls in a normal winter. Colder January nights than 75% of U.S. towns; hotter July afternoons than 63% of U.S. towns.
How cold does it get in Iyanbito in winter?
December nights average 17°. About 166 nights a year reach 32° or below and 3 reach 0° or below. In the coldest December of the last 30 years the month averaged 24°.
How much snow does Iyanbito get?
About 21 inches in a normal winter at Gallup Sand & Gravel, NM, most of it in February and December, with snow on the ground about 24 days a year.
How hot does it get in Iyanbito?
July, with a typical high of 87° and a low of 56°. About 29 days a year reach 90° (Gallup Sand & Gravel, NM).
When is the first and last frost in Iyanbito?
In half of years the last spring frost (32°) comes by May 11 and the first fall frost by October 7, about 148 frost-free days, at Gallup Sand & Gravel, NM.
What growing zone is Iyanbito in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −6°.
What is the best time of year to visit Iyanbito?
By one simple rule (highs of 62–84° and lows of 40° or more), August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Iyanbito getting warmer?
Yes: 1991–2020 averaged 1.4° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 51% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Iyanbito.
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.