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Edition 2017-01

Hail days by metro, January 2017.

In January 2017, 44 of 333 metros had at least one day with a hail report within 10 miles of their centre, against 22 in January 2016. San Jose, CA led with 4 days, against its own January mean of 0.1 over 21 prior years of record. On 100 percent of metro hail days at least one report was measured by a person or an instrument; the rest were detected by radar alone. Nationally the month had 18 days with hail on record, against 12 a year earlier.

44

Of 333 metros with a hail day

18

Days with hail on record nationally

100%

Of metro hail days carried a measured report

4.00in

Largest measured, 15 Jan, TX

Hail days by metro, January 2017

Against each metro's own January on record

Hail days by metro, January 2017: each metro's hail days in the window, its year to date, its own mean for the span over the record, the share of its days carried by a measured report, and its largest measured and largest detected hail.
Rank Metro Days Year to date January mean Measured share Largest measured Largest detected
01 San Jose, CA 4 +3.9 4 0.1 100% 4 of 4 days measured 0.25″ None detected
02 Santa Clara, CA 4 +3.9 4 0.1 100% 4 of 4 days measured 0.25″ None detected
03 Berkeley, CA 4 +3.9 4 0.1 100% 4 of 4 days measured 0.25″ None detected
04 Oakland, CA 3 +3.0 3 0.1 100% 3 of 3 days measured 0.25″ None detected
05 Salinas, CA 3 +3.0 3 0.0 100% 3 of 3 days measured 0.25″ None detected
06 Sunnyvale, CA 2 +2.0 2 0.1 100% 2 of 2 days measured 0.25″ None detected
07 Visalia, CA 2 +1.9 2 0.1 100% 2 of 2 days measured 0.25″ None detected
08 Richmond, CA 2 +2.0 2 0.1 100% 2 of 2 days measured 0.25″ None detected
09 Beaumont, TX 2 +2.0 2 0.1 100% 2 of 2 days measured 1.00″ None detected
10 San Mateo, CA 2 +1.9 2 0.1 100% 2 of 2 days measured 0.25″ None detected
11 Houston, TX 1 +0.8 1 0.2 100% 1 of 1 day measured 1.00″ None detected
12 Jacksonville, FL 1 +0.8 1 0.2 100% 1 of 1 day measured 0.50″ None detected
13 Fresno, CA 1 +0.9 1 0.1 100% 1 of 1 day measured 0.25″ None detected
14 Sacramento, CA 1 +1.0 1 0.0 100% 1 of 1 day measured 0.25″ None detected
15 Bakersfield, CA 1 +1.0 1 0.0 100% 1 of 1 day measured 0.25″ None detected
16 Arlington, TX 1 +0.9 1 0.1 100% 1 of 1 day measured 1.00″ None detected
17 New Orleans, LA 1 +1.0 1 0.1 100% 1 of 1 day measured 1.00″ None detected
18 Anaheim, CA 1 +1.0 1 0.0 100% 1 of 1 day measured 0.25″ None detected
19 Irvine, CA 1 +1.0 1 0.0 100% 1 of 1 day measured 0.75″ None detected
20 Santa Ana, CA 1 +1.0 1 0.1 100% 1 of 1 day measured 0.75″ None detected
21 Fremont, CA 1 +1.0 1 0.1 100% 1 of 1 day measured 0.25″ None detected
22 Birmingham, AL 1 +0.8 1 0.2 100% 1 of 1 day measured 0.50″ None detected
23 Huntington Beach, CA 1 +1.0 1 0.1 100% 1 of 1 day measured 0.25″ None detected
24 Mobile, AL 1 +0.9 1 0.1 100% 1 of 1 day measured 2.00″ None detected
25 Ontario, CA 1 +1.0 1 0.0 100% 1 of 1 day measured 0.25″ None detected
26 Oceanside, CA 1 +0.9 1 0.1 100% 1 of 1 day measured 0.25″ None detected
27 Garden Grove, CA 1 +1.0 1 0.1 100% 1 of 1 day measured 0.25″ None detected
28 Corona, CA 1 +1.0 1 0.1 100% 1 of 1 day measured 0.25″ None detected
29 Roseville, CA 1 +1.0 1 0.0 100% 1 of 1 day measured 0.25″ None detected
30 Savannah, GA 1 +1.0 1 0.0 100% 1 of 1 day measured 0.75″ None detected
31 Pomona, CA 1 +1.0 1 0.0 100% 1 of 1 day measured 0.25″ None detected
32 Jackson, MS 1 +0.6 1 0.4 100% 1 of 1 day measured 0.88″ None detected
33 Fullerton, CA 1 +1.0 1 0.0 100% 1 of 1 day measured 0.25″ None detected
34 Orange, CA 1 +1.0 1 0.0 100% 1 of 1 day measured 0.75″ None detected
35 Pearland, TX 1 +1.0 1 0.1 100% 1 of 1 day measured 1.75″ None detected
36 Clovis, CA 1 +0.9 1 0.1 100% 1 of 1 day measured 0.25″ None detected
37 Concord, CA 1 +1.0 1 0.0 100% 1 of 1 day measured 0.25″ None detected
38 Las Cruces, NM 1 +1.0 1 0.0 100% 1 of 1 day measured 1.00″ None detected
39 Carlsbad, CA 1 +0.9 1 0.1 100% 1 of 1 day measured 0.25″ None detected
40 New Braunfels, TX 1 +1.0 1 0.0 100% 1 of 1 day measured 0.25″ None detected
41 Costa Mesa, CA 1 +1.0 1 0.1 100% 1 of 1 day measured 0.75″ None detected
42 West Covina, CA 1 +1.0 1 0.0 100% 1 of 1 day measured 0.25″ None detected
43 Palm Coast, FL 1 +1.0 1 0.1 100% 1 of 1 day measured 1.00″ None detected
44 Davenport, IA 1 +0.9 1 0.1 100% 1 of 1 day measured 0.25″ None detected

By state

The states by the hail days filed under each by its source, busiest first, with January 2016 beside it. The first 15 of 19; the rest are on their own pages.

  1. 01 California 8 days
    • 8 measured
    • 1.00″
    • 4 in January 2016
  2. 02 Texas 6 days
    • 6 measured
    • 4.00″
    • 4 in January 2016
  3. 03 Mississippi 5 days
    • 5 measured
    • 1.75″
    • 3 in January 2016
  4. 04 Louisiana 4 days
    • 4 measured
    • 3.50″
    • 3 in January 2016
  5. 05 Florida 3 days
    • 3 measured
    • 2.00″
    • 2 in January 2016
  6. 06 Alabama 3 days
    • 3 measured
    • 2.00″
    • 1 in January 2016
  7. 07 Georgia 3 days
    • 3 measured
    • 1.75″
    • none in January 2016
  8. 08 Indiana 3 days
    • 3 measured
    • 0.70″
    • none in January 2016
  9. 09 Oregon 3 days
    • 3 measured
    • 0.25″
    • none in January 2016
  10. 10 Illinois 3 days
    • 3 measured
    • 1.00″
    • none in January 2016
  11. 11 Arkansas 2 days
    • 2 measured
    • 2.50″
    • 1 in January 2016
  12. 12 New Mexico 2 days
    • 2 measured
    • 1.25″
    • none in January 2016
  13. 13 Colorado 2 days
    • 2 measured
    • 0.25″
    • none in January 2016
  14. 14 Arizona 2 days
    • 2 measured
    • 0.25″
    • 1 in January 2016
  15. 15 Utah 2 days
    • 2 measured
    • 0.25″
    • none in January 2016

The busiest day of the month

Saturday 21 January 2017

Hail reports
240
Sources
×3
Measured
3.50″
States
8

Against January 2016

The same month a year earlier, counted the same way; the January 2016 edition has the full table. Oceanside, CA led then with 2 days.

44 +22

Metros with a hail day

January 2016 22

18 +6

Days with hail on record nationally

January 2016 12

18 +6

Days with a measured hail report

January 2016 12

685 +366

Hail reports, all sources

January 2016 319

Cite this edition

Titan Weather, Hail days by metro, January 2017. Compiled 25 August 2026. https://titanweather.com/data/2017/01

Compiled 25 August 2026 from the public federal storm record. The figures are the record as it stands; a revision by a federal source is carried here at the same address. The file carries every metro in the series, the ones with nothing this month included, with the same provenance line inside it.

Download January 2017 as CSV
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How this series is made

A metro
A metro, as this series uses the word, is a place the Census Bureau lists with a population of 100,000 or more, not a metropolitan statistical area. Smaller places have a hail-history page of their own; they are not in this table.
A hail day
A calendar date with at least one hail report in the archive within 10 miles of the metro's Census centre, from any source. Four sources describing one storm are one afternoon of hail, not four.
The mean
The metro's own hail days over the same span of the calendar, January, in each of the 21 prior years the record reaches, from 1996, divided by those years. A span is compared with itself, never with the country.
The measured share
Of a metro's hail days, the share on which at least one report came from a person or an instrument rather than from radar alone. A detection is a detection and is marked as one here and in every document we issue; the two are never added together.
Overlap
Two metros within 20 miles of each other share reports, so their counts are not exclusive and the national figures are distinct dates, not a sum of the table. The table ranks the record around each centre; it is not a report on any property, and it states no opinion about one.
The record
Searched from 1996 to today. Compiled 25 August 2026 and rebuilt as the federal sources revise it. Records are reproduced as the federal sources published them. The coverage page states what the record holds, by kind and by year.

About this record

Everything here is reproduced from public federal and volunteer weather records, as the agencies and observer networks that publish them released it. Titan Weather compiles the record; it does not observe the weather, and it is not affiliated with any source it cites.

No archive holds everything. Storms cross places where nobody is standing, instruments and observers cover some areas better than others, sources revise their records, and recent reports can take weeks to arrive and settle. Coverage also thins as the years go back: an early quiet stretch may describe who was watching rather than what the weather did. Where this page shows nothing, nothing was found in the sources searched, within the period and area it states. That is not a finding that no weather occurred.

A record sits where its source filed it. Reports made from the ground are commonly logged against a town, a landmark or an offset from one rather than the spot where the measurement was taken, so any distance shown for one carries that source's own location error. Radar detections and warning geometry are instrument-located and do not.

These pages describe the public record near a place or on a date. They do not establish what reached any particular property, and nothing here is insurance, legal or engineering advice.