Idaho · THREADEX · 1895–2026

Challis, ID

44.523°N, 114.216°W · station LLJthr · 132 years of record
57°F
forecast low · Jul 18

7-Day Forecast

NWS NDFD forecast low temperature for Challis.
62°TUE7/1460°WED7/1558°THU7/1658°FRI7/1757°SAT7/1859°SUN7/19

This Day in History · Jul 18

Today ranks

#101 / 110
coldest Jul 18 in 110 yrs of record

Coldest Jul 18 ever

35°F
set in 1914

Mildest Jul 18 ever

62°F
set in 1929

Coldest Jul 18 — Year by Year

Every year's low on Jul 18 at Challis. The forecast line shows where today lands; the ringed bar is the coldest on record.
3548621897: 41°F1899: 55°F1900: 50°F1914: 35°F1915: 38°F1916: 49°F1917: 50°F1918: 49°F1919: 43°F1920: 50°F1921: 48°F1922: 53°F1923: 44°F1924: 42°F1925: 55°F1926: 56°F1927: 47°F1928: 50°F1929: 62°F1930: 45°F1931: 52°F1932: 51°F1933: 51°F1934: 52°F1935: 51°F1936: 56°F1937: 52°F1938: 52°F1939: 47°F1940: 51°F1941: 54°F1942: 42°F1943: 47°F1944: 49°F1945: 51°F1946: 49°F1947: 52°F1948: 51°F1949: 47°F1950: 49°F1951: 58°F1952: 44°F1953: 54°F1954: 51°F1955: 56°F1956: 50°F1957: 47°F1958: 49°F1959: 55°F1960: 45°F1961: 50°F1962: 53°F1963: 42°F1964: 50°F1965: 52°F1966: 49°F1967: 49°F1968: 54°F1969: 51°F1970: 53°F1971: 59°F1972: 54°F1973: 54°F1974: 53°F1975: 46°F1976: 57°F1977: 58°F1978: 51°F1980: 55°F1981: 54°F1982: 48°F1983: 50°F1984: 55°F1985: 55°F1986: 45°F1987: 44°F1988: 55°F1989: 50°F1990: 46°F1991: 50°F1992: 52°F1993: 44°F1994: 58°F1995: 57°F1999: 47°F2001: 48°F2002: 57°F2003: 53°F2004: 54°F2005: 49°F2006: 54°F2007: 54°F2008: 51°F2009: 51°F2010: 48°F2011: 48°F2012: 48°F2013: 51°F2014: 52°F2015: 46°F2016: 45°F2017: 54°F2018: 53°F2019: 53°F2020: 54°F2021: 57°F2022: 57°F2023: 49°F2024: 54°F2025: 54°F57° forecast189719142025

The Numbers

Forecast low · Jul 1857°F
Coldest this date since2025
This-date record35°F
This-date rank#101 of 110
Coldest at any time since2026
All-time record-34°F (1983)
Odds to tie/break0.0% (daily)
Period of record1895–2026

Record Book

The hottest and coldest ever recorded at Challis in each calendar month, and for the whole 1895–2026 record — with the year each was set.
MonthRecord HighRecord Low
Jan60°F1898-33°F1949
Feb65°F1950-31°F1933
Mar75°F2026-16°F1922
Apr87°F19153°F1936
May96°F200315°F1915
Jun100°F199224°F1920
Jul103°F196431°F1955
Aug103°F196120°F1927
Sep99°F202217°F1926
Oct89°F1927-4°F2002
Nov75°F1937-17°F1985
Dec63°F2021-34°F1983
All-time103°F1961-34°F1983

2026 Records So Far

Records set or tied at Challis so far this year — through Jul 11.

Record Highs in 2026

3 broke
plus 2 tied — daily record highs set this year
Monthly high record this year: Mar (75°F)

Record Lows in 2026

0 broke
plus 1 tied — daily record lows set this year

Cold Streaks

Current run

0 days
consecutive days with a low ≤ 32°F

Longest ever

163 days
record run, ended Apr 12 1937

So far in 2026

100 days
days with a low ≤ 32°F this year

Climate Normals

Normal low & low by month, from Challis's own 1991–2020 record. Today's normal low: 52°F · forecast is +5° vs normal.
Jan: 30°FJan: 10°FFeb: 37°FFeb: 16°FMar: 50°FMar: 25°FApr: 58°FApr: 30°FMay: 67°FMay: 39°FJun: 77°FJun: 45°FJul: 88°FJul: 51°FAug: 86°FAug: 49°FSep: 75°FSep: 41°FOct: 59°FOct: 31°FNov: 42°FNov: 20°FDec: 30°FDec: 10°FJFMAMJJASOND

Sun & Location

Sun & Daylight Today

Sunrise4:04 AM
Sunset7:21 PM
Solar noon11:42 AM
Daylight15h 16m · losing 9 min/wk
Local standard time (no DST), level horizon.

Location

44.52°N, 114.22°W

Nearby Stations

Stanley, ID42 mi SWMcCall, ID95 mi WBoise, ID120 mi SWJerome, ID124 mi SPocatello, ID137 mi SEBurley, ID138 mi S

The Last 6 Weeks

Challis's observed daily low for the last six weeks — a white ring marks any day that broke or tied its daily record for that date.
Challis, ID — last six weeks of daily low

2026 So Far

Every day this year against Challis's own record — the record low, the normal, and the full span ever seen. A shareable look at where the year stands.
Challis, ID — 2026 daily low trace
Download year chart

Every Day Since 1895

Each cell is one day's low at Challis, coloured by temperature — 132 years of record, so heat waves read as warm streaks and cold snaps as blue.
Challis, ID daily low heat map 1895–2026

Days Below the Mark

How many days a year hit a given low at Challis — counted through Jul 18 each year, so you can see whether 2026 is running cold. Pick a threshold:
100 days ≤32°F so far in 2026 — tied for the 103rd most in 132 years. Normal for this point: 98. Record: 131 in 1918.

Share Card

A ready-to-share summary of Challis's outlook — post it, or link this page.
Challis, ID cold share card
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