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Sonoma County
Sonoma County
California, United States

Haystack

Haystack is a locality in California, United States. The climate is classified as warm-summer Mediterranean (Köppen Csb), with dry, sunny summers and mild, wetter winters.

Now63°F
Best timeJun–Aug
Population–
Local time10:58
38.22° N, 122.61° WElevation 13 ftUTC−7 · Pacific Daylight Time
The year in Haystackweather score
JanFebMarAprMayJunJulAugSepOctNovDec92October
October: high / low74° / 48°
Rain this month41mm
Best timeJun–Aug

Best: Jun–Aug. Warmth, sunshine and dry days, month by month.

Haystack at a glance

Best time to visitJun–Aug

The months with the highest weather score

Warmest month79°F

Average high in September

Coolest month39°F

Average low in December

Wettest monthDecember

166 mm of rain

Driest monthJuly

0 mm of rain

Monuments nearby8+

within 16 km

Weather in Haystack

Now and the next ten days. The 14 and 30-day outlooks are one click away.

14-day forecast
63°F

Partly cloudy · wind 8 km/h · humidity 72%

Today hour by hour
Today23 Oct71°47°
Sat24 Oct72°44°
Sun25 Oct69°43°
Mon26 Oct69°47°
Tue27 Oct70°40°
Wed28 Oct69°42°
Thu29 Oct69°42°
Fri30 Oct65°47°
Sat31 Oct64°45°

When to go to Haystack

Each month's weather score (warmth, sun, dry days) with its temperatures and rain.

Climate month by month
JanFebMarAprMayJunJulAugSepOctNovDec
Score536472869397969593928148
High58°61°64°67°71°77°79°79°79°74°64°57°
Low40°41°43°45°48°51°53°53°51°48°43°39°
Rain (mm)1581551114425402641103166
Wet days99106310014712

What's on in Haystack

Concerts, football matches, the public holidays ahead and the town's festivals through the year.

Monuments and museums in Haystack

All monuments

Nature around Haystack

Nature in United States

Wildlife in October

The birds and mammals of United States seen most this month, compared with the rest of their year.

The sky over Haystack

Eclipses and meteor showers

Earthquakes around Haystack

The last 30 days within 300 km, and the record since 1950.

Earthquakes

Strongest nearby since 1950

6.9Day Valley 2 km ←1989 · 147 km
6.2San Jose 19 km →1984 · 130 km
6.0American Canyon 6 km ↖2014 · 26 km
5.8Boulder Creek 7 km ↑1955 · 122 km

Fossil sites near this town

Fossil sites: 1 · 4 km

Fossils in the United States
Quaternary · 1
Mammoths and mastodons · 1Mammut

Towns and villages around Haystack

Each with its own page: weather, climate and the best time to visit.

Places near Haystack

Frequently asked questions

When is the best time to visit Haystack?
Based on 30-year climate normals, June, July and August offer the best balance of comfortable temperatures, low rainfall and sunshine in Haystack.
What is the hottest month in Haystack?
September is the warmest month, with average highs of 79°F and lows of 51°F.
What is the coldest month in Haystack?
December is the coldest month, with average highs of 57°F and lows of 39°F.
What is the rainiest month in Haystack?
December is the wettest month with about 6.5 in of precipitation on 12 wet days.