Australia · 1991–2020

Best time to visit
Illilawa.

April leads for comfortable weather in Illilawa: typically 24.3°C by day, 10.1°C at night, with 17 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortApril

Typical high24.3°C

Typical low10.1°C

Rain in April17 mm

Comfort

April

April · October · March

90climate match

Beach

March

March · February · December

81climate match

Outdoors

May

May · September · April

93climate match

The weakest month is July, scoring 49 against April’s 90 — days reach only 15.4°C, 9° below the 24°C the score treats as ideal, and nights drop to 4.3°C.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

6333.6° / 17.6°

Feb

6732.6° / 17.4°

Mar

8228.9° / 14.1°

Apr

9024.3° / 10.1°

May

7119.6° / 7.1°

Jun

5516.2° / 5.2°

Jul

4915.4° / 4.3°

Aug

5917.5° / 4.9°

Sep

7521.2° / 7.4°

Oct

8724.9° / 10°

Nov

8128.5° / 13.3°

Dec

7530.9° / 15.5°

Monthly climate evidence for Illilawa — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	33.6°C	17.6°C	32 mm	3.3	14 h 13	63	Good coverage
February	32.6°C	17.4°C	38 mm	3.3	13 h 24	67	Good coverage
March	28.9°C	14.1°C	30 mm	2.9	12 h 24	82	Good coverage
April	24.3°C	10.1°C	17 mm	2.6	11 h 16	90	Good coverage
May	19.6°C	7.1°C	25 mm	3.8	10 h 21	71	Good coverage
June	16.2°C	5.2°C	32 mm	5.3	9 h 52	55	Good coverage
July	15.4°C	4.3°C	35 mm	6	10 h 03	49	Good coverage
August	17.5°C	4.9°C	27 mm	5	10 h 50	59	Good coverage
September	21.2°C	7.4°C	31 mm	5	11 h 55	75	Good coverage
October	24.9°C	10°C	31 mm	4	13 h 01	87	Good coverage
November	28.5°C	13.3°C	33 mm	4.2	13 h 59	81	Good coverage
December	30.9°C	15.5°C	35 mm	4	14 h 27	75	Good coverage

Records at HAY (MILLER STREET), 1957–2014
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	47.7°C5 Jan 2013	5.5°C25 Jan 1975	63 mm14 Jan 2011	191 mm1974 · driest 0 mm in 1983	57
February	47.2°C1 Feb 1968	5.3°C23 Feb 1965	104 mm5 Feb 2011	204 mm1973 · driest 0 mm in 1985	58
March	42.0°C7 Mar 1986	4.5°C24 Mar 1967	117 mm28 Mar 1999	182 mm1999 · driest 0 mm in 1995	58
April	37.3°C3 Apr 1986	0.7°C23 Apr 1999	70 mm14 Apr 2003	151 mm1974 · driest 0 mm in 2004	58
May	30.0°C1 May 1997	-2.2°C30 May 2006	79 mm15 May 1974	134 mm1988 · driest 1 mm in 1976	58
June	25.7°C7 Jun 2005	-3.6°C18 Jun 1998	53 mm10 Jun 1995	77 mm2009 · driest 3 mm in 1958	58
July	26.0°C29 Jul 1975	-3.6°C7 Jul 2012	29 mm29 Jul 1983	92 mm1986 · driest 3 mm in 1977	58
August	30.6°C25 Aug 1995	-3.8°C3 Aug 2014	29 mm17 Aug 1983	70 mm1973 · driest 1 mm in 1982	58
September	36.4°C22 Sep 2003	-1.4°C6 Sep 1995	36 mm25 Sep 1992	101 mm1970 · driest 2 mm in 2007	58
October	39.6°C25 Oct 2014	0.0°C2 Oct 1968	71 mm24 Oct 1975	150 mm1975 · driest 0 mm in 1991	58
November	44.9°C17 Nov 1980	2.8°C17 Nov 1983	57 mm30 Nov 1961	143 mm1961 · driest 0 mm in 1967	58
December	45.2°C31 Dec 2005	5.7°C6 Dec 2013	55 mm10 Dec 1963	152 mm1992 · driest 0 mm in 1967	58

Typical days per month at HAY (MILLER STREET), 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	29	23	0	1
February	26	20	0	1
March	24	13	0	<1
April	13	3	0	<1
May	3	0	<1	<1
June	<1	0	2	<1
July	0	0	3	1
August	<1	0	2	<1
September	6	1	<1	1
October	14	5	0	<1
November	21	12	0	1
December	26	17	0	1

How often, not how much — every day in HAY (MILLER STREET)’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	89%	9%	3%	6%	30.6–35.8°C
February	90%	10%	3%	5%	30.3–35.0°C
March	89%	10%	3%	7%	26.9–30.7°C
April	77%	11%	3%	8%	22.2–26.2°C
May	36%	15%	3%	13%	17.7–20.3°C
June	8%	19%	3%	18%	14.3–17.6°C
July	4%	20%	2%	19%	13.4–16.2°C
August	17%	19%	3%	17%	15.7–18.9°C
September	46%	17%	3%	13%	18.1–22.6°C
October	74%	16%	3%	10%	21.7–26.7°C
November	86%	12%	3%	7%	26.3–30.5°C
December	88%	10%	3%	6%	28.5–32.7°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1957Each stripe is one year’s mean temperature against the 57-year average. Warmest: 2014. Coolest: 1992.2014

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2162766
NOAA station: ASN00075031 · HAY (MILLER STREET)
Station distance: 12.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 24 usable years
Daylight: Calculated from latitude -34.48°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from HAY (MILLER STREET) is what differs

Hay→Hay South→Booroorban→One Tree→Corrong→

Or put two places side by side: Illilawa vs Hay

Best time to visitIllilawa.

April

March

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Illilawa.

The whole year,
without the guesswork.

Nearby, measured,
and named.