Little Anderson Idaho Weather Records (USR0000ILIT)

Record envelope, standing records and threshold days for Little Anderson Idaho (USR0000ILIT), Idaho, United States, with 31 years of record.

Key Facts for Little Anderson Idaho

Little Anderson Idaho (USR0000ILIT) is a weather station in Idaho, United States at 44.09 latitude and -115.88 longitude, 1,390 m (4,560 ft) above sea level.
The station reports from 1993 to 2023, 31 years of record.
1,464 records set at Little Anderson Idaho still stand.
Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
Little Anderson Idaho set a daily record high minimum temperature of 10.6 C (51.1 F) on 9 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Idaho, United States, 44.09 latitude, -115.88 longitude.
Elevation: 1,390 m (4,560 ft).
Period of record: 1993 to 2023, 31 years.
Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

31 days at or beyond a record

The band shows the record high and record low for each calendar day at Little Anderson Idaho. The lines show the 2026 daily maximum and minimum. 31 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Little Anderson Idaho, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	17.8 C (64.0 F)	-20.0 C (-4.0 F)	9.4 C (48.9 F)	-11.1 C (12.0 F)
Feb	17.2 C (63.0 F)	-19.4 C (-2.9 F)	14.4 C (57.9 F)	-9.4 C (15.1 F)
Mar	24.4 C (75.9 F)	-12.2 C (10.0 F)	24.4 C (75.9 F)	-5.6 C (21.9 F)
Apr	30.6 C (87.1 F)	-7.2 C (19.0 F)	26.1 C (79.0 F)	-5.6 C (21.9 F)
May	35.6 C (96.1 F)	-4.4 C (24.1 F)	31.1 C (88.0 F)	-1.7 C (28.9 F)
Jun	39.4 C (102.9 F)	-1.1 C (30.0 F)	31.1 C (88.0 F)	2.2 C (36.0 F)
Jul	42.8 C (109.0 F)	3.9 C (39.0 F)	42.8 C (109.0 F)	9.4 C (48.9 F)
Aug	39.4 C (102.9 F)	2.8 C (37.0 F)	37.8 C (100.0 F)	7.2 C (45.0 F)
Sep	37.3 C (99.1 F)	-2.8 C (27.0 F)	31.1 C (88.0 F)	3.9 C (39.0 F)
Oct	33.9 C (93.0 F)	-11.7 C (10.9 F)	30.0 C (86.0 F)	4.4 C (39.9 F)
Nov	22.8 C (73.0 F)	-18.3 C (-0.9 F)	n/a	n/a
Dec	13.0 C (55.4 F)	-20.6 C (-5.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Little Anderson Idaho still stand. 2015 holds the most, with 67.

Standing records at Little Anderson Idaho by the year they were set
Year set	Standing records
1993	63
1994	59
1995	62
1996	8
1997	1
1998	45
1999	54
2000	37
2001	54
2002	54
2003	58
2004	36
2005	39
2006	40
2007	47
2008	21
2009	28
2010	50
2011	47
2012	33
2013	44
2014	45
2015	67
2016	49
2017	46
2018	32
2019	31
2020	34
2021	47
2022	53
2023	50
2024	38
2025	47
2026	45

All-Time Record Progression

1 new records

1 all-time records were set at Little Anderson Idaho between 16 July 2026 and 16 July 2026. Each dot is a new record.

Period of Record Coverage

1993 to 2026

34 years of record at Little Anderson Idaho, 1993 to 2026. 6 years have data for under 90 percent of days and are left out of rankings: 1993, 1996, 1997, 2008, 2009, 2026.

Days with data per year at Little Anderson Idaho
Year	Days with data	Share of year	Complete
1993	225	62%	No
1994	363	99%	Yes
1995	358	98%	Yes
1996	47	13%	No
1997	45	12%	No
1998	363	99%	Yes
1999	365	100%	Yes
2000	365	100%	Yes
2001	364	100%	Yes
2002	365	100%	Yes
2003	353	97%	Yes
2004	365	100%	Yes
2005	342	94%	Yes
2006	364	100%	Yes
2007	350	96%	Yes
2008	235	64%	No
2009	218	60%	No
2010	365	100%	Yes
2011	365	100%	Yes
2012	366	100%	Yes
2013	365	100%	Yes
2014	341	93%	Yes
2015	365	100%	Yes
2016	366	100%	Yes
2017	358	98%	Yes
2018	365	100%	Yes
2019	364	100%	Yes
2020	358	98%	Yes
2021	365	100%	Yes
2022	365	100%	Yes
2023	365	100%	Yes
2024	366	100%	Yes
2025	365	100%	Yes
2026	284	78%	No

Latest Records

Latest records at Little Anderson Idaho
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 October 2026	Little Anderson Idaho, US	daily high min (Provisional)	10.6 C (51.1 F)	0.6 C (1.1 F)	1 year	4 of 100 (Routine)
8 October 2026	Little Anderson Idaho, US	daily high min (Provisional)	11.1 C (52.0 F)	0.5 C (0.9 F)	11 years	7 of 100 (Routine)
7 October 2026	Little Anderson Idaho, US	daily high max (Provisional)	28.9 C (84.0 F)	2.2 C (4.0 F)	1 year	6 of 100 (Routine)
6 October 2026	Little Anderson Idaho, US	daily high max (Provisional)	28.9 C (84.0 F)	1.7 C (3.1 F)	23 years	11 of 100 (Routine)
5 October 2026	Little Anderson Idaho, US	daily high min (Provisional)	12.8 C (55.0 F)	1.7 C (3.1 F)	32 years	16 of 100 (Routine)
5 October 2026	Little Anderson Idaho, US	daily high max (Provisional)	29.4 C (84.9 F)	1.6 C (2.9 F)	23 years	11 of 100 (Routine)
4 October 2026	Little Anderson Idaho, US	daily high max (Provisional)	30.0 C (86.0 F)	0.6 C (1.1 F)	32 years	12 of 100 (Routine)
4 October 2026	Little Anderson Idaho, US	daily high min (Tie, Provisional)	10.6 C (51.1 F)	tie	16 years	1 of 100 (Routine)
4 September 2026	Little Anderson Idaho, US	daily low max (Provisional)	11.1 C (52.0 F)	5.0 C (9.0 F)	9 years	13 of 100 (Routine)
28 August 2026	Little Anderson Idaho, US	daily high min (Tie, Provisional)	17.8 C (64.0 F)	tie	12 years	1 of 100 (Routine)
26 August 2026	Little Anderson Idaho, US	daily high min (Provisional)	17.2 C (63.0 F)	1.4 C (2.5 F)	4 years	8 of 100 (Routine)
23 August 2026	Little Anderson Idaho, US	daily high min (Provisional)	17.2 C (63.0 F)	1.4 C (2.5 F)	4 years	8 of 100 (Routine)
22 August 2026	Little Anderson Idaho, US	monthly high min (Provisional)	21.7 C (71.1 F)	1.1 C (2.0 F)	32 years	25 of 100 (Routine)
21 August 2026	Little Anderson Idaho, US	daily high min (Provisional)	19.4 C (66.9 F)	3.3 C (5.9 F)	27 years	21 of 100 (Routine)
20 August 2026	Little Anderson Idaho, US	daily high max (Provisional)	36.7 C (98.1 F)	1.1 C (2.0 F)	16 years	10 of 100 (Routine)
4 August 2026	Little Anderson Idaho, US	daily low min (Tie)	11.1 C (52.0 F)	tie	8 years	1 of 100 (Routine)
3 August 2026	Little Anderson Idaho, US	daily low min (Tie)	10.0 C (50.0 F)	tie	12 years	1 of 100 (Routine)
21 July 2026	Little Anderson Idaho, US	daily high min	19.4 C (66.9 F)	0.5 C (0.9 F)	1 year	4 of 100 (Routine)
17 July 2026	Little Anderson Idaho, US	daily high max	40.0 C (104.0 F)	1.7 C (3.1 F)	28 years	14 of 100 (Routine)
16 July 2026	Little Anderson Idaho, US	all-time high max	42.8 C (109.0 F)	1.1 C (2.0 F)	24 years	32 of 100 (Routine)

Climate Trend

25 complete years, 1994 to 2025

One stripe for each of 25 complete years at Little Anderson Idaho, 1994 to 2025. Blue stripes are years cooler than the station's own mean of 9.1 C (48.3 F); red stripes are warmer. The coolest year was 2011, at 8.1 C (46.6 F), and the warmest was 2015, at 10.2 C (50.3 F). The strongest colour marks a difference of 1.2 C (2.2 F).

Annual mean temperature at Little Anderson Idaho as warming stripes, 1994 to 2025
Year	Annual mean temperature	Difference from the station mean
1994	9.3 C	+0.19 C
1995	8.5 C	-0.53 C
1998	9.1 C	+0.08 C
1999	9.0 C	-0.10 C
2000	8.9 C	-0.17 C
2001	9.3 C	+0.19 C
2002	9.0 C	-0.10 C
2003	9.7 C	+0.67 C
2004	9.1 C	+0.06 C
2006	9.0 C	-0.05 C
2010	8.5 C	-0.52 C
2011	8.1 C	-0.95 C
2012	9.4 C	+0.30 C
2013	8.6 C	-0.43 C
2015	10.2 C	+1.10 C
2016	9.3 C	+0.24 C
2017	8.6 C	-0.42 C
2018	9.1 C	-0.01 C
2019	8.4 C	-0.67 C
2020	9.0 C	-0.07 C
2021	9.7 C	+0.66 C
2022	8.6 C	-0.48 C
2023	8.7 C	-0.40 C
2024	9.6 C	+0.50 C
2025	9.9 C	+0.83 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1993 to 2026

Yearly extremes at Little Anderson Idaho: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.8 C (109.0 F)	2026	37.8 C (100.0 F)	34
Coldest night (TNn)	-20.6 C (-5.1 F)	1998	-16.7 C (1.9 F)	34

Hottest day (TXx)

The hottest day of the year at Little Anderson Idaho, 1993 to 2026. The record is 42.8 C (109.0 F) in 2026, marked on the chart; the median year is 37.8 C (100.0 F).

Hottest day (TXx) at Little Anderson Idaho by year
Year	Hottest day (TXx)
1993	32.8 C (91.0 F)
1994	38.3 C (100.9 F)
1995	34.4 C (93.9 F)
1996	25.6 C (78.1 F)
1997	20.0 C (68.0 F)
1998	38.3 C (100.9 F)
1999	36.7 C (98.1 F)
2000	37.2 C (99.0 F)
2001	38.3 C (100.9 F)
2002	41.7 C (107.1 F)
2003	39.4 C (102.9 F)
2004	38.3 C (100.9 F)
2005	38.9 C (102.0 F)
2006	38.9 C (102.0 F)
2007	39.4 C (102.9 F)
2008	37.8 C (100.0 F)
2009	37.2 C (99.0 F)
2010	35.6 C (96.1 F)
2011	37.8 C (100.0 F)
2012	39.4 C (102.9 F)
2013	38.9 C (102.0 F)
2014	36.7 C (98.1 F)
2015	39.4 C (102.9 F)
2016	35.6 C (96.1 F)
2017	36.7 C (98.1 F)
2018	39.4 C (102.9 F)
2019	35.6 C (96.1 F)
2020	37.2 C (99.0 F)
2021	38.2 C (100.8 F)
2022	37.4 C (99.3 F)
2023	37.9 C (100.2 F)
2024	37.8 C (100.0 F)
2025	35.6 C (96.1 F)
2026	42.8 C (109.0 F)

Coldest night (TNn)

The coldest night of the year at Little Anderson Idaho, 1993 to 2026. The record is -20.6 C (-5.1 F) in 1998, marked on the chart; the median year is -16.7 C (1.9 F).

Coldest night (TNn) at Little Anderson Idaho by year
Year	Coldest night (TNn)
1993	-17.8 C (0.0 F)
1994	-15.0 C (5.0 F)
1995	-13.9 C (7.0 F)
1996	-18.3 C (-0.9 F)
1997	-11.7 C (10.9 F)
1998	-20.6 C (-5.1 F)
1999	-12.2 C (10.0 F)
2000	-11.7 C (10.9 F)
2001	-14.4 C (6.1 F)
2002	-16.7 C (1.9 F)
2003	-11.7 C (10.9 F)
2004	-18.3 C (-0.9 F)
2005	-16.7 C (1.9 F)
2006	-15.6 C (3.9 F)
2007	-16.7 C (1.9 F)
2008	-14.4 C (6.1 F)
2009	-18.3 C (-0.9 F)
2010	-18.3 C (-0.9 F)
2011	-18.9 C (-2.0 F)
2012	-12.2 C (10.0 F)
2013	-18.3 C (-0.9 F)
2014	-15.6 C (3.9 F)
2015	-16.7 C (1.9 F)
2016	-19.4 C (-2.9 F)
2017	-19.4 C (-2.9 F)
2018	-16.1 C (3.0 F)
2019	-15.0 C (5.0 F)
2020	-12.9 C (8.8 F)
2021	-13.8 C (7.2 F)
2022	-18.2 C (-0.8 F)
2023	-19.4 C (-2.9 F)
2024	-20.0 C (-4.0 F)
2025	-19.4 C (-2.9 F)
2026	-11.1 C (12.0 F)

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

25 years with a frost

Across 25 years with a frost, the median last spring frost at Little Anderson Idaho falls on 17 May and the median first autumn frost on 11 October, which leaves a median of 146 days between them.

Fitted over all years, the growing season changes by +7.6 days per decade at this station.

Frost dates and growing season at Little Anderson Idaho
Measure	Median, all years	Earliest period	Recent period (1994 to 2025)	Recent against earliest	Fitted trend
Last spring frost	17 May	n/a	17 May	n/a	-3.1 days per decade
First autumn frost	11 October	n/a	11 October	n/a	+4.5 days per decade
Growing days	146 days	n/a	146 days	n/a	+7.6 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Download the Data

Data for Little Anderson Idaho standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Little Anderson Idaho threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-13. Last revised 13 October 2026 (2026-10-13).