This shows the number of weather stations (both ham and non-ham) sending directly to APRS-IS servers. The information for packets is here.
| Year | Mon | Day | Hour | AMB1 | AMB2 | CWOP-3 | CWOP-4 | CWOP-5 | CWOP-6 | CWOP-7 | 5th | 1st | 4th | 2nd | 6th | 9th | 8th | 3rd | other | Total |
| 2025 | 12 | 05 | 15 | 1558 | 605 | 1392 | 1765 | 2190 | 3252 | 2621 | 26 | 22 | 30 | 29 | 22 | 37 | 39 | 41 | 2333 | 15962 |
| 2025 | 12 | 05 | 14 | 1555 | 605 | 2488 | 1860 | 2113 | 2045 | 2712 | 22 | 23 | 26 | 25 | 33 | 32 | 31 | 46 | 2332 | 15948 |
| 2025 | 12 | 05 | 13 | 1556 | 604 | 2695 | 1829 | 2289 | 2110 | 2283 | 22 | 34 | 37 | 35 | 19 | 28 | 35 | 36 | 2322 | 15934 |
| 2025 | 12 | 05 | 12 | 1557 | 604 | 2307 | 1929 | 2401 | 1694 | 2871 | 23 | 19 | 33 | 36 | 23 | 41 | 37 | 31 | 2319 | 15925 |
| 2025 | 12 | 05 | 11 | 1557 | 599 | 2036 | 1634 | 2568 | 2476 | 2505 | 21 | 28 | 29 | 31 | 28 | 36 | 26 | 42 | 2277 | 15893 |
| 2025 | 12 | 05 | 10 | 1554 | 599 | 1758 | 1800 | 2119 | 2773 | 2763 | 21 | 28 | 29 | 31 | 28 | 36 | 26 | 42 | 2277 | 15884 |
| 2025 | 12 | 05 | 09 | 1556 | 602 | 2554 | 1946 | 1923 | 2374 | 2386 | 21 | 27 | 28 | 24 | 22 | 33 | 40 | 44 | 2295 | 15875 |
| 2025 | 12 | 05 | 08 | 1558 | 602 | 2177 | 1788 | 2239 | 2417 | 2545 | 28 | 31 | 28 | 32 | 22 | 28 | 30 | 43 | 2281 | 15849 |
| 2025 | 12 | 05 | 07 | 1555 | 603 | 1909 | 2170 | 2020 | 2719 | 2334 | 15 | 29 | 25 | 29 | 21 | 36 | 32 | 46 | 2282 | 15825 |
| 2025 | 12 | 05 | 06 | 1556 | 603 | 2639 | 1692 | 2682 | 1948 | 2176 | 20 | 23 | 27 | 25 | 33 | 33 | 26 | 48 | 2264 | 15795 |
| 2025 | 12 | 05 | 05 | 1557 | 603 | 1450 | 1999 | 2410 | 2115 | 3151 | 23 | 27 | 28 | 30 | 25 | 30 | 40 | 42 | 2236 | 15766 |
| 2025 | 12 | 05 | 04 | 1555 | 603 | 2105 | 1909 | 2157 | 2234 | 2700 | 19 | 21 | 34 | 34 | 26 | 30 | 28 | 42 | 2231 | 15728 |
| 2025 | 12 | 05 | 03 | 1554 | 602 | 1804 | 2040 | 2394 | 2136 | 2717 | 30 | 17 | 30 | 39 | 21 | 23 | 31 | 52 | 2217 | 15707 |
| 2025 | 12 | 05 | 02 | 1552 | 599 | 2434 | 1881 | 2025 | 2248 | 2492 | 25 | 28 | 27 | 33 | 16 | 33 | 37 | 51 | 2191 | 15672 |
| 2025 | 12 | 05 | 01 | 1553 | 598 | 1271 | 1963 | 2454 | 2360 | 2994 | 27 | 23 | 26 | 33 | 22 | 39 | 32 | 40 | 2148 | 15583 |
| 2025 | 12 | 05 | 00 | 1558 | 604 | 2089 | 1796 | 2030 | 2068 | 3284 | 20 | 16 | 38 | 38 | 27 | 41 | 31 | 38 | 2357 | 16035 |
| 2025 | 12 | 04 | 23 | 1559 | 603 | 2234 | 1761 | 2258 | 2284 | 2722 | 24 | 22 | 33 | 31 | 29 | 42 | 35 | 40 | 2343 | 16020 |
| 2025 | 12 | 04 | 22 | 1555 | 604 | 2109 | 1537 | 2489 | 2245 | 2877 | 24 | 28 | 40 | 34 | 29 | 30 | 32 | 39 | 2337 | 16009 |
| 2025 | 12 | 04 | 21 | 1557 | 604 | 2337 | 1819 | 1913 | 2712 | 2469 | 24 | 30 | 30 | 27 | 28 | 38 | 34 | 32 | 2345 | 15999 |
| 2025 | 12 | 04 | 20 | 1557 | 604 | 2749 | 1672 | 2538 | 2304 | 1987 | 24 | 25 | 28 | 27 | 27 | 36 | 35 | 54 | 2312 | 15979 |
| 2025 | 12 | 04 | 19 | 1554 | 604 | 2447 | 1982 | 1895 | 3068 | 1855 | 13 | 26 | 29 | 41 | 21 | 34 | 29 | 48 | 2306 | 15952 |
| 2025 | 12 | 04 | 18 | 1551 | 603 | 1501 | 1904 | 1771 | 3386 | 2688 | 35 | 25 | 32 | 19 | 23 | 24 | 36 | 46 | 2298 | 15942 |
| 2025 | 12 | 04 | 17 | 1552 | 601 | 2567 | 1756 | 2002 | 2190 | 2726 | 19 | 32 | 30 | 27 | 35 | 27 | 26 | 40 | 2298 | 15928 |
| 2025 | 12 | 04 | 16 | 1554 | 603 | 2262 | 1660 | 2358 | 2109 | 2838 | 16 | 22 | 30 | 31 | 36 | 40 | 31 | 31 | 2292 | 15913 |
| 2025 | 12 | 04 | 15 | 1553 | 602 | 2629 | 2196 | 1753 | 2298 | 2347 | 28 | 20 | 31 | 27 | 29 | 37 | 24 | 40 | 2287 | 15901 |
| 2025 | 12 | 04 | 14 | 1555 | 603 | 2375 | 1886 | 2872 | 1559 | 2521 | 23 | 23 | 31 | 24 | 29 | 36 | 25 | 49 | 2274 | 15885 |
| 2025 | 12 | 04 | 13 | 1556 | 603 | 1733 | 1743 | 2662 | 2541 | 2518 | 26 | 30 | 26 | 25 | 31 | 32 | 32 | 42 | 2266 | 15866 |
| 2025 | 12 | 04 | 12 | 1556 | 603 | 1748 | 2027 | 2291 | 2474 | 2654 | 24 | 31 | 28 | 26 | 21 | 31 | 36 | 46 | 2259 | 15855 |
| 2025 | 12 | 04 | 11 | 1552 | 603 | 2423 | 2085 | 2048 | 2058 | 2576 | 26 | 22 | 34 | 31 | 28 | 39 | 29 | 40 | 2245 | 15839 |
| 2025 | 12 | 04 | 10 | 1553 | 602 | 2322 | 1641 | 2438 | 2570 | 2219 | 20 | 28 | 27 | 27 | 24 | 32 | 35 | 47 | 2244 | 15829 |
| 2025 | 12 | 04 | 09 | 1553 | 602 | 2145 | 1725 | 2232 | 2172 | 2908 | 28 | 38 | 26 | 23 | 31 | 29 | 28 | 41 | 2231 | 15812 |
| 2025 | 12 | 04 | 08 | 1552 | 602 | 2291 | 1789 | 2403 | 2576 | 2116 | 20 | 23 | 34 | 31 | 25 | 30 | 33 | 47 | 2223 | 15795 |
| 2025 | 12 | 04 | 07 | 1552 | 603 | 2245 | 1819 | 2086 | 2400 | 2604 | 23 | 35 | 33 | 26 | 21 | 26 | 29 | 49 | 2213 | 15764 |
| 2025 | 12 | 04 | 06 | 1553 | 603 | 1833 | 1929 | 2378 | 1786 | 3218 | 27 | 35 | 25 | 34 | 24 | 25 | 28 | 45 | 2201 | 15744 |
| 2025 | 12 | 04 | 05 | 1553 | 603 | 2038 | 1759 | 2414 | 2367 | 2558 | 19 | 25 | 24 | 26 | 25 | 27 | 41 | 47 | 2146 | 15672 |
| 2025 | 12 | 04 | 04 | 1552 | 602 | 2540 | 1938 | 2375 | 2108 | 2174 | 32 | 23 | 26 | 27 | 37 | 27 | 27 | 43 | 2122 | 15653 |
| 2025 | 12 | 04 | 03 | 1550 | 601 | 2068 | 1816 | 1806 | 2655 | 2782 | 24 | 21 | 29 | 32 | 26 | 30 | 29 | 46 | 2117 | 15632 |
| 2025 | 12 | 04 | 02 | 1551 | 602 | 2052 | 2252 | 2263 | 2690 | 1853 | 25 | 23 | 31 | 27 | 26 | 33 | 34 | 41 | 2101 | 15604 |
| 2025 | 12 | 04 | 01 | 1548 | 601 | 2285 | 2160 | 2047 | 1903 | 2671 | 22 | 35 | 31 | 24 | 32 | 23 | 30 | 37 | 2073 | 15522 |
| 2025 | 12 | 04 | 00 | 1555 | 603 | 2171 | 1634 | 2425 | 2498 | 2538 | 18 | 33 | 31 | 22 | 34 | 28 | 40 | 39 | 2317 | 15986 |
| 2025 | 12 | 03 | 23 | 1555 | 604 | 2405 | 1795 | 2286 | 2011 | 2768 | 22 | 36 | 23 | 31 | 26 | 29 | 38 | 38 | 2310 | 15977 |
| 2025 | 12 | 03 | 22 | 1557 | 604 | 2604 | 1964 | 2132 | 2048 | 2513 | 20 | 31 | 36 | 25 | 25 | 31 | 33 | 40 | 2302 | 15965 |
| 2025 | 12 | 03 | 21 | 1556 | 604 | 1928 | 2007 | 2064 | 2410 | 2846 | 26 | 26 | 27 | 39 | 21 | 30 | 35 | 39 | 2300 | 15958 |
| 2025 | 12 | 03 | 20 | 1555 | 603 | 2339 | 1813 | 2298 | 2574 | 2225 | 25 | 22 | 29 | 37 | 31 | 29 | 34 | 44 | 2291 | 15949 |
| 2025 | 12 | 03 | 19 | 1554 | 603 | 2998 | 1742 | 2050 | 1724 | 2736 | 18 | 21 | 34 | 30 | 26 | 38 | 29 | 41 | 2298 | 15942 |
| 2025 | 12 | 03 | 18 | 1555 | 604 | 2005 | 1751 | 2448 | 2463 | 2574 | 24 | 26 | 41 | 31 | 24 | 28 | 32 | 41 | 2284 | 15931 |
| 2025 | 12 | 03 | 17 | 1555 | 603 | 1854 | 1942 | 2209 | 2624 | 2612 | 29 | 30 | 29 | 29 | 23 | 28 | 33 | 45 | 2278 | 15923 |
| 2025 | 12 | 03 | 16 | 1554 | 602 | 2196 | 1943 | 1764 | 3065 | 2264 | 34 | 20 | 28 | 28 | 26 | 27 | 40 | 44 | 2279 | 15914 |