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 | 09 | 15 | 20 | 1547 | 589 | 2687 | 1552 | 2237 | 2480 | 2371 | 28 | 27 | 35 | 26 | 21 | 24 | 42 | 46 | 2390 | 16102 |
| 2025 | 09 | 15 | 19 | 1545 | 590 | 2086 | 1580 | 2118 | 2607 | 2932 | 33 | 32 | 33 | 27 | 24 | 24 | 30 | 43 | 2388 | 16092 |
| 2025 | 09 | 15 | 18 | 1547 | 590 | 2256 | 1938 | 2068 | 2010 | 3041 | 21 | 27 | 30 | 32 | 22 | 29 | 35 | 46 | 2384 | 16076 |
| 2025 | 09 | 15 | 17 | 1547 | 590 | 2457 | 1764 | 2397 | 2184 | 2503 | 27 | 27 | 29 | 31 | 37 | 30 | 35 | 39 | 2367 | 16064 |
| 2025 | 09 | 15 | 16 | 1547 | 587 | 2358 | 1882 | 2187 | 2045 | 2822 | 20 | 38 | 39 | 21 | 26 | 31 | 27 | 52 | 2365 | 16047 |
| 2025 | 09 | 15 | 15 | 1543 | 587 | 1927 | 2309 | 2307 | 2360 | 2388 | 25 | 31 | 36 | 34 | 28 | 27 | 30 | 42 | 2359 | 16033 |
| 2025 | 09 | 15 | 14 | 1546 | 587 | 2201 | 1737 | 2116 | 2330 | 2904 | 19 | 41 | 22 | 34 | 27 | 29 | 29 | 37 | 2362 | 16021 |
| 2025 | 09 | 15 | 13 | 1545 | 585 | 1858 | 1857 | 2599 | 2194 | 2770 | 22 | 34 | 28 | 39 | 34 | 24 | 33 | 37 | 2333 | 15992 |
| 2025 | 09 | 15 | 12 | 1542 | 585 | 2502 | 1575 | 2630 | 1755 | 2804 | 34 | 33 | 35 | 22 | 33 | 25 | 32 | 34 | 2320 | 15961 |
| 2025 | 09 | 15 | 11 | 1541 | 587 | 2123 | 1571 | 2713 | 2409 | 2439 | 31 | 32 | 32 | 22 | 22 | 32 | 29 | 47 | 2316 | 15946 |
| 2025 | 09 | 15 | 10 | 1543 | 587 | 1743 | 1890 | 2449 | 2570 | 2592 | 24 | 23 | 38 | 25 | 29 | 28 | 33 | 42 | 2311 | 15927 |
| 2025 | 09 | 15 | 09 | 1543 | 587 | 2047 | 1816 | 2405 | 2534 | 2436 | 22 | 33 | 30 | 31 | 18 | 40 | 36 | 35 | 2302 | 15915 |
| 2025 | 09 | 15 | 08 | 1540 | 585 | 2065 | 1764 | 2372 | 2699 | 2337 | 20 | 29 | 25 | 24 | 20 | 31 | 42 | 46 | 2286 | 15885 |
| 2025 | 09 | 15 | 07 | 1543 | 583 | 1862 | 2061 | 2870 | 2409 | 2013 | 29 | 25 | 21 | 33 | 22 | 33 | 29 | 44 | 2285 | 15862 |
| 2025 | 09 | 15 | 06 | 1542 | 581 | 2071 | 2116 | 2467 | 2354 | 2205 | 22 | 28 | 27 | 31 | 19 | 36 | 41 | 42 | 2251 | 15833 |
| 2025 | 09 | 15 | 05 | 1542 | 581 | 2070 | 1761 | 2387 | 2803 | 2179 | 23 | 29 | 29 | 21 | 22 | 30 | 31 | 52 | 2249 | 15809 |
| 2025 | 09 | 15 | 04 | 1543 | 582 | 2493 | 1807 | 2395 | 1961 | 2528 | 20 | 31 | 27 | 27 | 23 | 35 | 35 | 42 | 2224 | 15773 |
| 2025 | 09 | 15 | 03 | 1542 | 582 | 2700 | 1936 | 2585 | 2072 | 1882 | 28 | 30 | 32 | 30 | 27 | 29 | 36 | 30 | 2211 | 15752 |
| 2025 | 09 | 15 | 02 | 1544 | 582 | 1952 | 1698 | 2166 | 2880 | 2457 | 25 | 34 | 29 | 23 | 24 | 29 | 43 | 39 | 2180 | 15705 |
| 2025 | 09 | 15 | 01 | 1541 | 580 | 2454 | 2312 | 1970 | 2233 | 2160 | 21 | 21 | 36 | 24 | 31 | 38 | 23 | 55 | 2144 | 15643 |
| 2025 | 09 | 15 | 00 | 1550 | 590 | 2555 | 2036 | 1510 | 2728 | 2485 | 27 | 32 | 46 | 21 | 15 | 33 | 26 | 41 | 2387 | 16082 |
| 2025 | 09 | 14 | 23 | 1550 | 588 | 2585 | 2103 | 1810 | 2768 | 2047 | 26 | 34 | 32 | 36 | 30 | 35 | 27 | 30 | 2375 | 16076 |
| 2025 | 09 | 14 | 22 | 1551 | 589 | 1714 | 1785 | 2171 | 3014 | 2620 | 29 | 38 | 28 | 26 | 20 | 28 | 33 | 35 | 2382 | 16063 |
| 2025 | 09 | 14 | 21 | 1552 | 590 | 1659 | 2525 | 2133 | 2347 | 2629 | 19 | 34 | 35 | 41 | 25 | 26 | 24 | 43 | 2372 | 16054 |
| 2025 | 09 | 14 | 20 | 1549 | 590 | 1889 | 2059 | 2314 | 2377 | 2654 | 30 | 25 | 34 | 26 | 23 | 28 | 39 | 39 | 2372 | 16048 |
| 2025 | 09 | 14 | 19 | 1545 | 590 | 2235 | 1672 | 2242 | 2718 | 2423 | 19 | 30 | 31 | 31 | 26 | 30 | 42 | 45 | 2360 | 16039 |
| 2025 | 09 | 14 | 18 | 1549 | 590 | 1677 | 1930 | 2478 | 2850 | 2346 | 18 | 27 | 34 | 29 | 25 | 39 | 35 | 42 | 2357 | 16026 |
| 2025 | 09 | 14 | 17 | 1548 | 590 | 1792 | 1988 | 2537 | 1676 | 3286 | 23 | 28 | 31 | 31 | 35 | 31 | 37 | 34 | 2351 | 16018 |
| 2025 | 09 | 14 | 16 | 1550 | 589 | 2206 | 1675 | 2436 | 2144 | 2814 | 29 | 22 | 38 | 25 | 18 | 27 | 30 | 48 | 2357 | 16008 |
| 2025 | 09 | 14 | 15 | 1550 | 589 | 1952 | 2301 | 1919 | 1985 | 3108 | 31 | 27 | 34 | 33 | 27 | 26 | 31 | 35 | 2342 | 15990 |
| 2025 | 09 | 14 | 14 | 1551 | 590 | 1997 | 1933 | 2450 | 2303 | 2572 | 24 | 25 | 33 | 24 | 26 | 29 | 32 | 43 | 2345 | 15977 |
| 2025 | 09 | 14 | 13 | 1547 | 590 | 2200 | 1655 | 2483 | 2701 | 2211 | 22 | 35 | 28 | 35 | 32 | 26 | 31 | 43 | 2318 | 15957 |
| 2025 | 09 | 14 | 12 | 1548 | 590 | 2021 | 1839 | 2823 | 2041 | 2514 | 24 | 25 | 42 | 27 | 24 | 30 | 34 | 42 | 2316 | 15940 |
| 2025 | 09 | 14 | 11 | 1546 | 590 | 1959 | 1801 | 2491 | 2474 | 2514 | 22 | 24 | 35 | 32 | 36 | 28 | 37 | 41 | 2293 | 15923 |
| 2025 | 09 | 14 | 10 | 1545 | 589 | 2290 | 1750 | 1871 | 2476 | 2840 | 19 | 29 | 45 | 28 | 27 | 25 | 31 | 38 | 2292 | 15895 |
| 2025 | 09 | 14 | 09 | 1546 | 588 | 2475 | 1600 | 2578 | 2587 | 1987 | 24 | 31 | 39 | 32 | 25 | 30 | 28 | 39 | 2269 | 15878 |
| 2025 | 09 | 14 | 08 | 1546 | 589 | 3088 | 1706 | 2032 | 1981 | 2409 | 32 | 30 | 37 | 35 | 17 | 16 | 28 | 49 | 2254 | 15849 |
| 2025 | 09 | 14 | 07 | 1545 | 590 | 2391 | 1779 | 1852 | 1993 | 3188 | 23 | 27 | 33 | 22 | 29 | 25 | 40 | 41 | 2244 | 15822 |
| 2025 | 09 | 14 | 06 | 1543 | 590 | 1964 | 1774 | 2089 | 2983 | 2378 | 30 | 31 | 32 | 31 | 31 | 23 | 29 | 42 | 2221 | 15791 |
| 2025 | 09 | 14 | 05 | 1543 | 589 | 1957 | 1833 | 2298 | 2483 | 2604 | 24 | 26 | 34 | 29 | 29 | 31 | 22 | 40 | 2220 | 15762 |
| 2025 | 09 | 14 | 04 | 1545 | 589 | 2495 | 1922 | 2122 | 2347 | 2281 | 22 | 31 | 28 | 23 | 22 | 29 | 41 | 45 | 2198 | 15740 |
| 2025 | 09 | 14 | 03 | 1545 | 589 | 2402 | 1869 | 2393 | 2116 | 2373 | 23 | 34 | 30 | 32 | 22 | 33 | 26 | 37 | 2187 | 15711 |
| 2025 | 09 | 14 | 02 | 1546 | 586 | 2150 | 1638 | 2686 | 2297 | 2368 | 25 | 34 | 29 | 31 | 18 | 25 | 35 | 40 | 2165 | 15673 |
| 2025 | 09 | 14 | 01 | 1545 | 587 | 2367 | 1920 | 2262 | 2018 | 2541 | 23 | 25 | 28 | 31 | 21 | 30 | 43 | 36 | 2128 | 15605 |
| 2025 | 09 | 14 | 00 | 1551 | 592 | 1706 | 1629 | 2461 | 2409 | 3102 | 21 | 28 | 27 | 29 | 25 | 37 | 26 | 48 | 2408 | 16099 |
| 2025 | 09 | 13 | 23 | 1547 | 592 | 2274 | 1864 | 2450 | 2287 | 2432 | 19 | 25 | 28 | 25 | 28 | 34 | 36 | 47 | 2403 | 16091 |
| 2025 | 09 | 13 | 22 | 1546 | 592 | 1999 | 2166 | 2195 | 2837 | 2098 | 24 | 22 | 36 | 29 | 29 | 33 | 26 | 47 | 2405 | 16084 |
| 2025 | 09 | 13 | 21 | 1547 | 591 | 1878 | 2109 | 1890 | 2826 | 2588 | 27 | 26 | 37 | 24 | 19 | 25 | 42 | 41 | 2399 | 16069 |