Lewis and Clark County climate

Lewis and Clark County Weather in July

NOAA 1991-2020 normals for Rogers Pass 9 Nne, 10.7 km from Lewis and Clark County

Average highs run from 76°F on July 1 to 84°F on July 31, and lows from 48°F to 52°F. Normal precipitation for the month is 1.23 in over about 6 wet days.

July day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Lewis and Clark County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

July at a glance

Average high
82°F
Average low
51°F
Precipitation
1.23 in
Record high
100°FJul 6, 2007
Record low
30°FJul 19, 1993
Chance of a freeze
3%
Days of 90°F or more
5.7
Daylight
15 h 51 min to 14 h 56 min
Cloud cover
43%
Humidity
60%
Dew point
45°F
Wind
4.7 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Jul 176°F48°F96°F 199036°F 197227%0%
Jul 277°F48°F96°F 201339°F 197226%0%
Jul 377°F48°F94°F 198634°F 197226%0%
Jul 478°F49°F93°F 198537°F 197825%0%
Jul 578°F49°F97°F 200735°F 197225%0%
Jul 678°F49°F100°F 200736°F 201024%0%
Jul 779°F49°F95°F 201736°F 196524%0%
Jul 879°F49°F97°F 201736°F 202024%0%
Jul 980°F50°F96°F 198537°F 197723%0%
Jul 1080°F50°F100°F 197334°F 197723%0%
Jul 1181°F50°F93°F 197335°F 200823%0%
Jul 1281°F50°F97°F 200238°F 199222%0%
Jul 1381°F50°F99°F 200239°F 197722%0%
Jul 1482°F51°F99°F 200241°F 201822%0%
Jul 1582°F51°F99°F 200737°F 199322%0%
Jul 1682°F51°F96°F 200737°F 199921%0%
Jul 1783°F51°F95°F 196635°F 199921%0%
Jul 1883°F51°F96°F 200334°F 197221%0%
Jul 1983°F51°F100°F 200330°F 199321%0%
Jul 2083°F51°F96°F 200338°F 201921%0%
Jul 2184°F52°F93°F 197936°F 196821%0%
Jul 2284°F52°F98°F 200337°F 199021%0%
Jul 2384°F52°F98°F 200338°F 201121%0%
Jul 2484°F52°F93°F 198942°F 201721%0%
Jul 2584°F52°F93°F 198834°F 200521%0%
Jul 2684°F52°F95°F 198439°F 199921%0%
Jul 2784°F52°F97°F 202140°F 196621%0%
Jul 2884°F52°F95°F 200739°F 196821%0%
Jul 2984°F52°F97°F 200633°F 196821%0%
Jul 3084°F52°F96°F 200041°F 196821%0%
Jul 3184°F52°F96°F 200039°F 199921%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Lewis and Clark County, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

July 1
sunrise 5:38 AM, sunset 9:29 PM
July 31
sunrise 6:08 AM, sunset 9:04 PM

Every day of July: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00247159 (Rogers Pass 9 Nne), public domain. Records: NOAA GHCN-Daily, station USC00247159, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.