39.128°N, 123.200°W · station UKIthr · 134 years of record
49°F
COLDEST SEP 4 SINCE 2015
forecast low · Sep 4
7-Day Forecast
NWS NDFD forecast low temperature for Ukiah.
This Day in History
Every year's low on each of the next 7 forecast dates at Ukiah — toggle a day below. The forecast line shows where it lands; the ringed bar is the coldest on record.
Ranks
#77 / 132
coldest Sep 2 in 132 yrs of record
Coldest Sep 2 ever
39°F
set in 1899
Mildest Sep 2 ever
67°F
set in 1979
Forecast low 52°F — 77th coldest Sep 2 of 132 years · record 39°F (1899) · coldest since 2024.
Ranks
#96 / 132
coldest Sep 3 in 132 yrs of record
Coldest Sep 3 ever
40°F
set in 1914
Mildest Sep 3 ever
63°F
set in 1982
Forecast low 54°F — 96th coldest Sep 3 of 132 years · record 40°F (1914) · coldest since 2024.
Ranks
#44 / 132
coldest Sep 4 in 132 yrs of record
Coldest Sep 4 ever
37°F
set in 1907
Mildest Sep 4 ever
67°F
set in 2017
Forecast low 49°F — 44th coldest Sep 4 of 132 years · record 37°F (1907) · coldest since 2015.
Ranks
#45 / 132
coldest Sep 5 in 132 yrs of record
Coldest Sep 5 ever
38°F
set in 1899
Mildest Sep 5 ever
68°F
set in 2017
Forecast low 49°F — 45th coldest Sep 5 of 132 years · record 38°F (1899) · coldest since 2016.
Ranks
#51 / 132
coldest Sep 6 in 132 yrs of record
Coldest Sep 6 ever
38°F
set in 1900
Mildest Sep 6 ever
65°F
set in 1998
Forecast low 50°F — 51st coldest Sep 6 of 132 years · record 38°F (1900) · coldest since 2018.
Ranks
#68 / 132
coldest Sep 7 in 132 yrs of record
Coldest Sep 7 ever
38°F
set in 1901
Mildest Sep 7 ever
67°F
set in 2022
Forecast low 51°F — 68th coldest Sep 7 of 132 years · record 38°F (1901) · coldest since 2025.
Ranks
#98 / 132
coldest Sep 8 in 132 yrs of record
Coldest Sep 8 ever
34°F
set in 1901
Mildest Sep 8 ever
67°F
set in 2021
Forecast low 54°F — 98th coldest Sep 8 of 132 years · record 34°F (1901) · coldest since 2025.
The hottest and coldest ever recorded at Ukiah in each calendar month, and for the whole 1893–2026 record — with the year each was set.
Month
Record High
Record Low
Jan
82°FJan 27, 1984
12°FJan 12, 1898
Feb
86°FFeb 26, 1932
18°FFeb 13, 1903
Mar
94°FMar 20, 2026
22°FMar 4, 1923
Apr
98°FApr 25, 1926
23°FApr 1, 1906
May
106°FMay 31, 2021
28°FMay 31, 1919
Jun
114°FJun 14, 1961
35°FJun 1, 1896
Jul
117°FJul 6, 2024
39°FJul 11, 1898
Aug
114°FAug 7, 1908
38°FAug 12, 1918
Sep
117°FSep 6, 2022
30°FSep 18, 1902
Oct
107°FOct 2, 2024
24°FOct 31, 1919
Nov
92°FNov 1, 1966
19°FNov 27, 1919
Dec
84°FDec 3, 2006
13°FDec 12, 1932
All-time
117°FSep 6, 2022
12°FJan 12, 1898
2026 Records So Far
Records set or tied at Ukiah so far this year — through Aug 30.
Record Highs in 2026
1 broke
plus 3 tied — daily record highs set this year
Monthly high record this year: Mar (94°F)
Record Lows in 2026
0 broke
plus 0 tied — daily record lows set this year
Record Warm Nights & Cold Days
Two more daily records, kept separate from the rankings: the warmest a night has ever stayed (record high minimum) and the coldest a day has ever gotten (record low maximum) — the flip side of the usual record high and low.
Warmest low ever
73°F
record high minimum — the night it never cooled · Jul 16, 1984
Coldest high ever
34°F
record low maximum — the day it never warmed · Dec 26, 1916
Month
Warmest low
Coldest high
Jan
56°FJan 21, 1970
34°FJan 2, 1924
Feb
57°FFeb 3, 1963
37°FFeb 3, 1903
Mar
57°FMar 15, 2015
42°FMar 2, 1896
Apr
64°FApr 8, 1989
46°FApr 4, 2010
May
63°FMay 30, 1973
50°FMay 20, 1901
Jun
69°FJun 26, 1973
57°FJun 1, 1898
Jul
73°FJul 16, 1984
61°FJul 4, 1895
Aug
72°FAug 5, 1961
64°FAug 17, 1976
Sep
71°FSep 18, 1984
58°FSep 26, 1923
Oct
63°FOct 16, 1926
50°FOct 13, 1899
Nov
58°FNov 4, 1941
40°FNov 13, 2000
Dec
57°FDec 13, 1929
34°FDec 26, 1916
All-time
73°FJul 16, 1984
34°FDec 26, 1916
Cold Streaks
Current run
0 days
consecutive days with a low ≤ 32°F
Longest ever
26 days
record run, ended Feb 5 1948
So far in 2026
9 days
days with a low ≤ 32°F this year
Climate Normals
Normal low & low by month, from Ukiah's own 1991–2020 record. Today's normal low: 53°F · forecast is -4° vs normal.