Lawrence ASOS Weather Records (USW00003997)

Record envelope, standing records and threshold days for Lawrence ASOS (USW00003997), Kansas, United States, with 31 years of record.

Key Facts for Lawrence ASOS

Lawrence ASOS (USW00003997) is a weather station in Kansas, United States at 39.01 latitude and -95.21 longitude, 252 m (827 ft) above sea level.
The station reports from 1996 to 2026, 31 years of record.
1,464 records set at Lawrence ASOS still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Kansas, United States, 39.01 latitude, -95.21 longitude.
Elevation: 252 m (827 ft).
Period of record: 1996 to 2026, 31 years.
Eligible elements: none yet.

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 Lawrence ASOS. 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 Lawrence ASOS, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	25.0 C (77.0 F)	-28.3 C (-18.9 F)	12.2 C (54.0 F)	-26.0 C (-14.8 F)
Feb	27.8 C (82.0 F)	-29.9 C (-21.8 F)	23.3 C (73.9 F)	-26.0 C (-14.8 F)
Mar	31.7 C (89.1 F)	-21.7 C (-7.1 F)	27.8 C (82.0 F)	-7.1 C (19.2 F)
Apr	34.4 C (93.9 F)	-8.8 C (16.2 F)	30.0 C (86.0 F)	-4.3 C (24.3 F)
May	36.7 C (98.1 F)	-3.9 C (25.0 F)	31.7 C (89.1 F)	2.2 C (36.0 F)
Jun	41.7 C (107.1 F)	4.4 C (39.9 F)	35.6 C (96.1 F)	10.0 C (50.0 F)
Jul	42.2 C (108.0 F)	7.8 C (46.0 F)	36.1 C (97.0 F)	14.4 C (57.9 F)
Aug	44.4 C (111.9 F)	7.8 C (46.0 F)	36.7 C (98.1 F)	7.8 C (46.0 F)
Sep	43.3 C (109.9 F)	-3.8 C (25.2 F)	35.6 C (96.1 F)	5.0 C (41.0 F)
Oct	35.6 C (96.1 F)	-9.3 C (15.3 F)	32.2 C (90.0 F)	-1.7 C (28.9 F)
Nov	28.9 C (84.0 F)	-14.9 C (5.2 F)	24.4 C (75.9 F)	-9.4 C (15.1 F)
Dec	23.9 C (75.0 F)	-26.7 C (-16.1 F)	20.0 C (68.0 F)	-17.8 C (0.0 F)

Which Years Hold Standing Records

1,464 standing records

1,464 records at Lawrence ASOS still stand. 2012 holds the most, with 86.

Standing records at Lawrence ASOS by the year they were set
Year set	Standing records
1996	22
1997	50
1998	56
1999	62
2000	83
2001	42
2002	38
2003	52
2004	46
2005	38
2006	55
2007	45
2008	39
2009	53
2010	40
2011	58
2012	86
2013	61
2014	55
2015	31
2016	37
2017	48
2018	55
2019	44
2020	33
2021	51
2022	44
2023	48
2024	50
2025	42

Wettest Day of Each Month

Oct: 128.3 mm (5.1 in)

The wettest day on record for each calendar month at Lawrence ASOS. The most was 128.3 mm (5.1 in) on 4 October 1998.

Record daily precipitation for each month at Lawrence ASOS
Month	Record daily precipitation (mm)	Date
Jan	32.8 mm (1.3 in)	30 January 2002
Feb	33.8 mm (1.3 in)	8 February 2001
Mar	51.6 mm (2.0 in)	4 March 2004
Apr	66.8 mm (2.6 in)	22 April 1999
May	80.5 mm (3.2 in)	31 May 2023
Jun	106.2 mm (4.2 in)	27 June 2020
Jul	90.7 mm (3.6 in)	17 July 2025
Aug	105.4 mm (4.1 in)	13 August 2005
Sep	91.2 mm (3.6 in)	23 September 2005
Oct	128.3 mm (5.1 in)	4 October 1998
Nov	73.7 mm (2.9 in)	1 November 1998
Dec	49.0 mm (1.9 in)	13 December 2015

Period of Record Coverage

1996 to 2025

30 years of record at Lawrence ASOS, 1996 to 2025. 1 years have data for under 90 percent of days and are left out of rankings: 1996.

Days with data per year at Lawrence ASOS
Year	Days with data	Share of year	Complete
1996	179	49%	No
1997	356	98%	Yes
1998	362	99%	Yes
1999	359	98%	Yes
2000	362	99%	Yes
2001	360	99%	Yes
2002	361	99%	Yes
2003	362	99%	Yes
2004	364	99%	Yes
2005	365	100%	Yes
2006	361	99%	Yes
2007	365	100%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	365	100%	Yes
2013	364	100%	Yes
2014	363	99%	Yes
2015	365	100%	Yes
2016	362	99%	Yes
2017	364	100%	Yes
2018	365	100%	Yes
2019	360	99%	Yes
2020	366	100%	Yes
2021	365	100%	Yes
2022	364	100%	Yes
2023	364	100%	Yes
2024	360	98%	Yes
2025	365	100%	Yes

Latest Records

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

Climate Trend

29 complete years, 1997 to 2025

One stripe for each of 29 complete years at Lawrence ASOS, 1997 to 2025. Blue stripes are years cooler than the station's own mean of 13.0 C (55.4 F); red stripes are warmer. The coolest year was 2008, at 11.5 C (52.8 F), and the warmest was 2012, at 14.5 C (58.1 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Lawrence ASOS as warming stripes, 1997 to 2025
Year	Annual mean temperature	Difference from the station mean
1997	11.9 C	-1.12 C
1998	13.5 C	+0.50 C
1999	12.9 C	-0.04 C
2000	13.2 C	+0.23 C
2001	13.5 C	+0.54 C
2002	12.9 C	-0.13 C
2003	12.7 C	-0.30 C
2004	12.8 C	-0.14 C
2005	13.2 C	+0.23 C
2006	13.9 C	+0.87 C
2007	13.1 C	+0.09 C
2008	11.5 C	-1.45 C
2009	12.0 C	-0.94 C
2010	12.6 C	-0.35 C
2011	12.7 C	-0.30 C
2012	14.5 C	+1.52 C
2013	12.0 C	-0.95 C
2014	11.8 C	-1.21 C
2015	13.1 C	+0.07 C
2016	13.8 C	+0.78 C
2017	13.5 C	+0.54 C
2018	12.8 C	-0.17 C
2019	12.6 C	-0.39 C
2020	13.0 C	+0.05 C
2021	13.6 C	+0.63 C
2022	12.7 C	-0.24 C
2023	14.0 C	+1.02 C
2024	14.0 C	+1.01 C
2025	12.8 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

1996 to 2026

Yearly extremes at Lawrence ASOS: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	44.4 C (111.9 F)	2023	39.4 C (102.9 F)	31
Coldest night (TNn)	-29.9 C (-21.8 F)	2021	-22.1 C (-7.8 F)	31
Wettest day (Rx1day)	128.3 mm (5.1 in)	1998	66.8 mm (2.6 in)	29
Wettest five days (Rx5day)	181.6 mm (7.1 in)	2021	118.6 mm (4.7 in)	29
Longest dry spell (CDD)	48 days	2017	29 days	29

Hottest day (TXx)

The hottest day of the year at Lawrence ASOS, 1996 to 2026. The record is 44.4 C (111.9 F) in 2023, marked on the chart; the median year is 39.4 C (102.9 F).

Hottest day (TXx) at Lawrence ASOS by year
Year	Hottest day (TXx)
1996	37.2 C (99.0 F)
1997	36.7 C (98.1 F)
1998	37.8 C (100.0 F)
1999	40.0 C (104.0 F)
2000	43.3 C (109.9 F)
2001	39.4 C (102.9 F)
2002	39.4 C (102.9 F)
2003	42.8 C (109.0 F)
2004	36.7 C (98.1 F)
2005	39.4 C (102.9 F)
2006	41.7 C (107.1 F)
2007	40.6 C (105.1 F)
2008	38.3 C (100.9 F)
2009	37.8 C (100.0 F)
2010	40.6 C (105.1 F)
2011	43.9 C (111.0 F)
2012	42.2 C (108.0 F)
2013	40.0 C (104.0 F)
2014	40.0 C (104.0 F)
2015	36.7 C (98.1 F)
2016	39.4 C (102.9 F)
2017	38.3 C (100.9 F)
2018	40.0 C (104.0 F)
2019	38.3 C (100.9 F)
2020	35.6 C (96.1 F)
2021	38.3 C (100.9 F)
2022	39.4 C (102.9 F)
2023	44.4 C (111.9 F)
2024	38.3 C (100.9 F)
2025	36.7 C (98.1 F)
2026	39.4 C (102.9 F)

Coldest night (TNn)

The coldest night of the year at Lawrence ASOS, 1996 to 2026. The record is -29.9 C (-21.8 F) in 2021, marked on the chart; the median year is -22.1 C (-7.8 F).

Coldest night (TNn) at Lawrence ASOS by year
Year	Coldest night (TNn)
1996	-17.8 C (0.0 F)
1997	-28.3 C (-18.9 F)
1998	-21.7 C (-7.1 F)
1999	-19.4 C (-2.9 F)
2000	-26.7 C (-16.1 F)
2001	-26.1 C (-15.0 F)
2002	-18.9 C (-2.0 F)
2003	-21.7 C (-7.1 F)
2004	-24.4 C (-11.9 F)
2005	-26.1 C (-15.0 F)
2006	-15.5 C (4.1 F)
2007	-19.3 C (-2.7 F)
2008	-22.7 C (-8.9 F)
2009	-18.2 C (-0.8 F)
2010	-25.5 C (-13.9 F)
2011	-26.6 C (-15.9 F)
2012	-16.6 C (2.1 F)
2013	-19.9 C (-3.8 F)
2014	-24.3 C (-11.7 F)
2015	-19.9 C (-3.8 F)
2016	-26.0 C (-14.8 F)
2017	-22.1 C (-7.8 F)
2018	-22.7 C (-8.9 F)
2019	-20.5 C (-4.9 F)
2020	-19.3 C (-2.7 F)
2021	-29.9 C (-21.8 F)
2022	-21.0 C (-5.8 F)
2023	-14.9 C (5.2 F)
2024	-24.9 C (-12.8 F)
2025	-26.0 C (-14.8 F)
2026	-25.6 C (-14.1 F)

Wettest day (Rx1day)

The wettest day of the year at Lawrence ASOS, 1996 to 2026. The record is 128.3 mm (5.1 in) in 1998, marked on the chart; the median year is 66.8 mm (2.6 in).

Wettest day (Rx1day) at Lawrence ASOS by year
Year	Wettest day (Rx1day)
1996	n/a
1997	n/a
1998	128.3 mm (5.1 in)
1999	66.8 mm (2.6 in)
2000	73.2 mm (2.9 in)
2001	75.2 mm (3.0 in)
2002	46.0 mm (1.8 in)
2003	73.4 mm (2.9 in)
2004	66.8 mm (2.6 in)
2005	105.4 mm (4.1 in)
2006	88.6 mm (3.5 in)
2007	57.7 mm (2.3 in)
2008	78.5 mm (3.1 in)
2009	59.9 mm (2.4 in)
2010	59.4 mm (2.3 in)
2011	49.5 mm (1.9 in)
2012	35.1 mm (1.4 in)
2013	51.3 mm (2.0 in)
2014	65.3 mm (2.6 in)
2015	54.9 mm (2.2 in)
2016	65.5 mm (2.6 in)
2017	84.3 mm (3.3 in)
2018	50.5 mm (2.0 in)
2019	94.7 mm (3.7 in)
2020	106.2 mm (4.2 in)
2021	104.6 mm (4.1 in)
2022	57.2 mm (2.3 in)
2023	80.5 mm (3.2 in)
2024	63.0 mm (2.5 in)
2025	90.7 mm (3.6 in)
2026	75.4 mm (3.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Lawrence ASOS, 1996 to 2026. The record is 181.6 mm (7.1 in) in 2021, marked on the chart; the median year is 118.6 mm (4.7 in).

Wettest five days (Rx5day) at Lawrence ASOS by year
Year	Wettest five days (Rx5day)
1996	n/a
1997	n/a
1998	151.7 mm (6.0 in)
1999	109.2 mm (4.3 in)
2000	90.7 mm (3.6 in)
2001	97.9 mm (3.9 in)
2002	78.5 mm (3.1 in)
2003	148.2 mm (5.8 in)
2004	167.0 mm (6.6 in)
2005	151.6 mm (6.0 in)
2006	135.9 mm (5.4 in)
2007	120.7 mm (4.8 in)
2008	116.6 mm (4.6 in)
2009	118.6 mm (4.7 in)
2010	103.9 mm (4.1 in)
2011	64.2 mm (2.5 in)
2012	57.6 mm (2.3 in)
2013	87.9 mm (3.5 in)
2014	123.7 mm (4.9 in)
2015	122.4 mm (4.8 in)
2016	120.4 mm (4.7 in)
2017	104.4 mm (4.1 in)
2018	152.9 mm (6.0 in)
2019	127.8 mm (5.0 in)
2020	120.4 mm (4.7 in)
2021	181.6 mm (7.1 in)
2022	65.5 mm (2.6 in)
2023	96.3 mm (3.8 in)
2024	115.6 mm (4.6 in)
2025	136.9 mm (5.4 in)
2026	108.2 mm (4.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Lawrence ASOS, 1996 to 2026. The record is 48 days in 2017, marked on the chart; the median year is 29 days.

Longest dry spell (CDD) at Lawrence ASOS by year
Year	Longest dry spell (CDD)
1996	n/a
1997	n/a
1998	25 days
1999	26 days
2000	34 days
2001	33 days
2002	41 days
2003	24 days
2004	26 days
2005	16 days
2006	34 days
2007	29 days
2008	17 days
2009	23 days
2010	36 days
2011	21 days
2012	33 days
2013	21 days
2014	31 days
2015	34 days
2016	34 days
2017	48 days
2018	28 days
2019	22 days
2020	33 days
2021	38 days
2022	18 days
2023	28 days
2024	31 days
2025	30 days
2026	20 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

29 years with a frost

Across 29 years with a frost, the median last spring frost at Lawrence ASOS falls on 20 April and the median first autumn frost on 15 October, which leaves a median of 176 days between them.

Fitted over all years, the growing season changes by -0.6 days per decade at this station.

Frost dates and growing season at Lawrence ASOS
Measure	Median, all years	Earliest period	Recent period (1997 to 2025)	Recent against earliest	Fitted trend
Last spring frost	20 April	n/a	20 April	n/a	+0.2 days per decade
First autumn frost	15 October	n/a	15 October	n/a	-0.4 days per decade
Growing days	176 days	n/a	176 days	n/a	-0.6 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 Lawrence ASOS standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Lawrence ASOS 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 2026-10-16 (16 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).