Butternut 3SW Weather Records (USC00471249)

Record envelope, standing records and threshold days for Butternut 3SW (USC00471249), Wisconsin, United States, with 30 years of record.

Key Facts for Butternut 3SW

Butternut 3SW (USC00471249) is a weather station in Wisconsin, United States at 45.98 latitude and -90.54 longitude, 479 m (1,570 ft) above sea level.
The station reports from 1997 to 2026, 30 years of record.
1,464 records set at Butternut 3SW still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Wisconsin, United States, 45.98 latitude, -90.54 longitude.
Elevation: 479 m (1,570 ft).
Period of record: 1997 to 2026, 30 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

24 days at or beyond a record

The band shows the record high and record low for each calendar day at Butternut 3SW. The lines show the 2026 daily maximum and minimum. 24 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Butternut 3SW, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	10.6 C (51.1 F)	-43.9 C (-47.0 F)	6.7 C (44.1 F)	-35.6 C (-32.1 F)
Feb	16.7 C (62.1 F)	-45.0 C (-49.0 F)	8.3 C (46.9 F)	-31.1 C (-24.0 F)
Mar	24.4 C (75.9 F)	-33.9 C (-29.0 F)	20.6 C (69.1 F)	-20.6 C (-5.1 F)
Apr	28.9 C (84.0 F)	-21.1 C (-6.0 F)	20.0 C (68.0 F)	-11.1 C (12.0 F)
May	32.2 C (90.0 F)	-7.2 C (19.0 F)	29.4 C (84.9 F)	-1.7 C (28.9 F)
Jun	34.4 C (93.9 F)	-3.3 C (26.1 F)	32.2 C (90.0 F)	2.2 C (36.0 F)
Jul	36.1 C (97.0 F)	0.6 C (33.1 F)	32.2 C (90.0 F)	6.7 C (44.1 F)
Aug	35.6 C (96.1 F)	0.6 C (33.1 F)	30.0 C (86.0 F)	5.0 C (41.0 F)
Sep	33.9 C (93.0 F)	-5.6 C (21.9 F)	29.4 C (84.9 F)	3.3 C (37.9 F)
Oct	30.0 C (86.0 F)	-14.4 C (6.1 F)	30.0 C (86.0 F)	-4.4 C (24.1 F)
Nov	22.2 C (72.0 F)	-26.7 C (-16.1 F)	11.1 C (52.0 F)	-13.9 C (7.0 F)
Dec	14.4 C (57.9 F)	-36.1 C (-33.0 F)	3.9 C (39.0 F)	-30.6 C (-23.1 F)

Which Years Hold Standing Records

1,464 standing records

1,464 records at Butternut 3SW still stand. 1998 holds the most, with 79.

Standing records at Butternut 3SW by the year they were set
Year set	Standing records
1997	7
1998	79
1999	19
2000	79
2001	73
2002	73
2003	72
2004	50
2005	53
2006	50
2007	74
2008	40
2009	44
2010	37
2011	36
2012	55
2013	57
2014	58
2015	38
2016	22
2017	60
2018	52
2019	44
2020	53
2021	38
2022	50
2023	59
2024	50
2025	42

Wettest Day of Each Month

Oct: 130.0 mm (5.1 in)

The wettest day on record for each calendar month at Butternut 3SW. The most was 130.0 mm (5.1 in) on 5 October 2005.

Record daily precipitation for each month at Butternut 3SW
Month	Record daily precipitation (mm)	Date
Jan	14.7 mm (0.6 in)	1 January 2007
Feb	24.1 mm (0.9 in)	3 February 2003
Mar	50.8 mm (2.0 in)	16 March 2016
Apr	58.4 mm (2.3 in)	19 April 2004
May	75.7 mm (3.0 in)	22 May 2024
Jun	95.3 mm (3.8 in)	12 June 2017
Jul	86.4 mm (3.4 in)	27 July 2020
Aug	66.8 mm (2.6 in)	27 August 2013
Sep	74.4 mm (2.9 in)	24 September 2010
Oct	130.0 mm (5.1 in)	5 October 2005
Nov	64.8 mm (2.6 in)	12 November 2015
Dec	25.4 mm (1.0 in)	24 December 2020

Period of Record Coverage

1997 to 2025

29 years of record at Butternut 3SW, 1997 to 2025. 7 years have data for under 90 percent of days and are left out of rankings: 1997, 1999, 2004, 2012, 2016, 2017, 2019.

Days with data per year at Butternut 3SW
Year	Days with data	Share of year	Complete
1997	59	16%	No
1998	365	100%	Yes
1999	120	33%	No
2000	366	100%	Yes
2001	364	100%	Yes
2002	365	100%	Yes
2003	356	98%	Yes
2004	322	88%	No
2005	349	96%	Yes
2006	360	99%	Yes
2007	334	92%	Yes
2008	357	98%	Yes
2009	360	99%	Yes
2010	352	96%	Yes
2011	355	97%	Yes
2012	323	88%	No
2013	331	91%	Yes
2014	352	96%	Yes
2015	336	92%	Yes
2016	182	50%	No
2017	323	88%	No
2018	357	98%	Yes
2019	319	87%	No
2020	354	97%	Yes
2021	337	92%	Yes
2022	345	95%	Yes
2023	352	96%	Yes
2024	343	94%	Yes
2025	347	95%	Yes

Latest Records

No records were set at this station in the latest data.

Climate Trend

20 complete years, 1998 to 2025

One stripe for each of 20 complete years at Butternut 3SW, 1998 to 2025. Blue stripes are years cooler than the station's own mean of 4.4 C (39.9 F); red stripes are warmer. The coolest year was 2014, at 2.4 C (36.3 F), and the warmest was 2024, at 6.5 C (43.8 F). The strongest colour marks a difference of 2.2 C (4.0 F).

Annual mean temperature at Butternut 3SW as warming stripes, 1998 to 2025
Year	Annual mean temperature	Difference from the station mean
1998	6.2 C	+1.81 C
2000	3.9 C	-0.51 C
2001	4.6 C	+0.18 C
2002	4.0 C	-0.37 C
2003	3.2 C	-1.25 C
2005	5.4 C	+0.94 C
2006	5.5 C	+1.10 C
2008	3.3 C	-1.15 C
2009	3.5 C	-0.95 C
2010	5.5 C	+1.12 C
2011	4.5 C	+0.09 C
2014	2.4 C	-2.03 C
2015	4.8 C	+0.35 C
2018	3.8 C	-0.63 C
2019	3.1 C	-1.30 C
2020	4.7 C	+0.24 C
2022	3.2 C	-1.18 C
2023	5.7 C	+1.24 C
2024	6.5 C	+2.13 C
2025	4.6 C	+0.22 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

1997 to 2026

Yearly extremes at Butternut 3SW: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	36.1 C (97.0 F)	2006	32.5 C (90.5 F)	30
Coldest night (TNn)	-45.0 C (-49.0 F)	2019	-33.0 C (-27.5 F)	30
Wettest day (Rx1day)	130.0 mm (5.1 in)	2005	57.1 mm (2.2 in)	30
Wettest five days (Rx5day)	193.0 mm (7.6 in)	2005	84.6 mm (3.3 in)	30
Longest dry spell (CDD)	29 days	2005	14 days	30

Hottest day (TXx)

The hottest day of the year at Butternut 3SW, 1997 to 2026. The record is 36.1 C (97.0 F) in 2006, marked on the chart; the median year is 32.5 C (90.5 F).

Hottest day (TXx) at Butternut 3SW by year
Year	Hottest day (TXx)
1997	14.4 C (57.9 F)
1998	32.8 C (91.0 F)
1999	17.8 C (64.0 F)
2000	31.1 C (88.0 F)
2001	33.9 C (93.0 F)
2002	33.3 C (91.9 F)
2003	31.7 C (89.1 F)
2004	31.1 C (88.0 F)
2005	32.8 C (91.0 F)
2006	36.1 C (97.0 F)
2007	32.2 C (90.0 F)
2008	29.4 C (84.9 F)
2009	34.4 C (93.9 F)
2010	32.2 C (90.0 F)
2011	33.9 C (93.0 F)
2012	34.4 C (93.9 F)
2013	33.9 C (93.0 F)
2014	29.4 C (84.9 F)
2015	31.7 C (89.1 F)
2016	31.1 C (88.0 F)
2017	30.6 C (87.1 F)
2018	33.9 C (93.0 F)
2019	30.0 C (86.0 F)
2020	31.7 C (89.1 F)
2021	33.3 C (91.9 F)
2022	33.9 C (93.0 F)
2023	33.9 C (93.0 F)
2024	32.8 C (91.0 F)
2025	32.2 C (90.0 F)
2026	33.3 C (91.9 F)

Coldest night (TNn)

The coldest night of the year at Butternut 3SW, 1997 to 2026. The record is -45.0 C (-49.0 F) in 2019, marked on the chart; the median year is -33.0 C (-27.5 F).

Coldest night (TNn) at Butternut 3SW by year
Year	Coldest night (TNn)
1997	-26.7 C (-16.1 F)
1998	-32.8 C (-27.0 F)
1999	-34.4 C (-29.9 F)
2000	-35.6 C (-32.1 F)
2001	-33.9 C (-29.0 F)
2002	-30.6 C (-23.1 F)
2003	-35.6 C (-32.1 F)
2004	-33.3 C (-27.9 F)
2005	-30.6 C (-23.1 F)
2006	-31.7 C (-25.1 F)
2007	-32.2 C (-26.0 F)
2008	-30.6 C (-23.1 F)
2009	-32.8 C (-27.0 F)
2010	-29.4 C (-20.9 F)
2011	-32.8 C (-27.0 F)
2012	-31.1 C (-24.0 F)
2013	-32.2 C (-26.0 F)
2014	-35.6 C (-32.1 F)
2015	-30.6 C (-23.1 F)
2016	-34.4 C (-29.9 F)
2017	-37.8 C (-36.0 F)
2018	-38.9 C (-38.0 F)
2019	-45.0 C (-49.0 F)
2020	-35.6 C (-32.1 F)
2021	-32.2 C (-26.0 F)
2022	-36.1 C (-33.0 F)
2023	-33.9 C (-29.0 F)
2024	-31.7 C (-25.1 F)
2025	-35.6 C (-32.1 F)
2026	-33.9 C (-29.0 F)

Wettest day (Rx1day)

The wettest day of the year at Butternut 3SW, 1997 to 2026. The record is 130.0 mm (5.1 in) in 2005, marked on the chart; the median year is 57.1 mm (2.2 in).

Wettest day (Rx1day) at Butternut 3SW by year
Year	Wettest day (Rx1day)
1997	19.8 mm (0.8 in)
1998	44.7 mm (1.8 in)
1999	22.9 mm (0.9 in)
2000	48.3 mm (1.9 in)
2001	57.7 mm (2.3 in)
2002	51.6 mm (2.0 in)
2003	61.2 mm (2.4 in)
2004	58.4 mm (2.3 in)
2005	130.0 mm (5.1 in)
2006	81.3 mm (3.2 in)
2007	48.0 mm (1.9 in)
2008	37.8 mm (1.5 in)
2009	45.7 mm (1.8 in)
2010	74.4 mm (2.9 in)
2011	56.4 mm (2.2 in)
2012	53.3 mm (2.1 in)
2013	66.8 mm (2.6 in)
2014	70.6 mm (2.8 in)
2015	64.8 mm (2.6 in)
2016	53.3 mm (2.1 in)
2017	95.3 mm (3.8 in)
2018	71.6 mm (2.8 in)
2019	72.1 mm (2.8 in)
2020	86.4 mm (3.4 in)
2021	47.0 mm (1.9 in)
2022	58.4 mm (2.3 in)
2023	36.6 mm (1.4 in)
2024	75.7 mm (3.0 in)
2025	49.5 mm (1.9 in)
2026	41.9 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Butternut 3SW, 1997 to 2026. The record is 193.0 mm (7.6 in) in 2005, marked on the chart; the median year is 84.6 mm (3.3 in).

Wettest five days (Rx5day) at Butternut 3SW by year
Year	Wettest five days (Rx5day)
1997	23.6 mm (0.9 in)
1998	83.8 mm (3.3 in)
1999	22.9 mm (0.9 in)
2000	67.9 mm (2.7 in)
2001	84.9 mm (3.3 in)
2002	84.2 mm (3.3 in)
2003	114.1 mm (4.5 in)
2004	81.0 mm (3.2 in)
2005	193.0 mm (7.6 in)
2006	108.0 mm (4.3 in)
2007	95.7 mm (3.8 in)
2008	52.4 mm (2.1 in)
2009	68.1 mm (2.7 in)
2010	112.0 mm (4.4 in)
2011	76.0 mm (3.0 in)
2012	101.3 mm (4.0 in)
2013	113.3 mm (4.5 in)
2014	133.9 mm (5.3 in)
2015	69.3 mm (2.7 in)
2016	73.7 mm (2.9 in)
2017	111.0 mm (4.4 in)
2018	140.0 mm (5.5 in)
2019	86.3 mm (3.4 in)
2020	147.4 mm (5.8 in)
2021	67.8 mm (2.7 in)
2022	65.5 mm (2.6 in)
2023	60.3 mm (2.4 in)
2024	88.1 mm (3.5 in)
2025	95.2 mm (3.7 in)
2026	45.2 mm (1.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Butternut 3SW, 1997 to 2026. The record is 29 days in 2005, marked on the chart; the median year is 14 days.

Longest dry spell (CDD) at Butternut 3SW by year
Year	Longest dry spell (CDD)
1997	18 days
1998	14 days
1999	15 days
2000	12 days
2001	20 days
2002	17 days
2003	22 days
2004	11 days
2005	29 days
2006	21 days
2007	15 days
2008	10 days
2009	16 days
2010	20 days
2011	17 days
2012	13 days
2013	14 days
2014	8 days
2015	8 days
2016	6 days
2017	11 days
2018	12 days
2019	14 days
2020	12 days
2021	8 days
2022	9 days
2023	16 days
2024	13 days
2025	10 days
2026	11 days

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

20 years with a frost

Across 20 years with a frost, the median last spring frost at Butternut 3SW falls on 23 May and the median first autumn frost on 27 September, which leaves a median of 120 days between them.

Frost dates and growing season at Butternut 3SW
Measure	Median, all years	Earliest period	Recent period (1998 to 2025)	Recent against earliest	Fitted trend
Last spring frost	23 May	n/a	23 May	n/a	n/a
First autumn frost	27 September	n/a	27 September	n/a	n/a
Growing days	120 days	n/a	120 days	n/a	n/a

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 Butternut 3SW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Butternut 3SW 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).